Методы зарядки литий-полимерных аккумуляторов

Методы зарядки литий-полимерных аккумуляторов

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Correct charging method of polymer lithium-ion battery:
1. When charging the polymer lithium ion battery, it is best to choose the original special charger, otherwise it will affect or damage the polymer lithium battery.
2. Лучше всего заряжать полимерную литиевую батарею медленным способом и стараться избегать быстрой зарядки. Многократная зарядка и разрядка также повлияет на срок службы полимерно-литиевого аккумулятора.
3. Если мобильный телефон не используется более 7 дней, полимерно-литиевую батарею следует полностью зарядить перед использованием. Полимерно-литиевая батарея имеет свойство саморазряда.
4. Время зарядки полимерной литиевой батареи не должно быть максимально долгим. При использовании обычных зарядных устройств, когда полимерная литиевая батарея полностью заряжена, следует немедленно прекратить зарядку, иначе полимерная литиевая батарея ухудшит свои характеристики из-за нагрева или перегрева.
5. After the polymer lithium ion battery is charged, try to avoid placing it on the charger for more than 10 hours. If it is not used for a long time, the mobile phone and the polymer lithium battery should be separated.
The above is the correct charging method of polymer lithium ion battery, I hope it can help you understand more about polymer lithium battery. When charging the polymer lithium battery, be sure to use a dedicated lithium battery charger, especially to match the parameters of the electric core used.

Guidelines for the Safe Use of Polymer Lithium Batteries

Guidelines for the Safe Use of Polymer Lithium Batteries

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In order to make you use the polymer lithium battery more safely, please read the following text carefully.

Combustion: Charging with a non-lithium battery charger may cause damage, smoke, heat or burning of the lithium battery!​
Damage: Over-discharge, over-charge or reverse charging will immediately cause damage to the lithium battery!
Charging: the charging current should not be greater than 1/2 of the battery capacity; the charging cut-off voltage is 4.20V±0.05V for a single battery; the charger can fully charge the corresponding lithium battery pack, and there is an indicator light to indicate the charging process (for details, please refer to the charger manual).
Discharge: For the first use, please use the recommended charger to charge;
When using it continuously, please pay attention to check the battery voltage. The total voltage of the 3-series battery pack shall not be lower than 8.25V; the total voltage of the 2-series battery pack shall not be lower than 5.5V; the voltage of a single battery shall not be lower than 2.75V. Voltages below these ratings will cause the battery to gass up and be damaged!
Storage: The self-discharge rate of lithium batteries is higher than that of nickel-metal hydride batteries. Long-term storage is prone to over-discharge. Please check the voltage regularly to keep the single voltage between 3.6V and 3.9V;
Storage conditions: temperature -20℃～+35℃; relative humidity 45%～85%.
The polymer lithium battery is packed with aluminum-plastic film, and it is forbidden to scratch, collide or pierce the surface of the battery with sharp objects. The battery tabs are not very strong and can be easily broken when bent, especially the positive tabs.
Each cell has flux tabs cold soldered on the positive lug to help you solder. When soldering, a constant temperature soldering iron of <100W should be used to tin the tabs, the temperature should be controlled below 350℃, the soldering iron tip should not stay on the tabs for more than 3 seconds, and the number of soldering should not exceed 3 consecutive times. The welding position is more than 1cm away from the root of the tab. The second welding must be done after the tabs have cooled.
The polymer lithium battery pack has been well welded, and it is forbidden to disassemble or re-solder. In theory, there is no flowing electrolyte in the lithium polymer battery, but if the electrolyte leaks and comes into contact with the skin, eyes or other parts of the body, immediately rinse with clean water and seek medical attention.
Do not use damaged battery cells (damaged sealing edge, damaged casing, smell of electrolyte, leakage of electrolyte, etc.). If the battery heats up rapidly, please keep away from the battery to avoid unnecessary damage.

8-Packaging-Processes-For-Lithium-Polymer-Batteries

8 Packaging Processes For Lithium Polymer Batteries

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Lithium battery soft packs have good safety performance, so they are widely used in electronic digital products, medical equipment, medical equipment, and handheld electronic equipment. I believe that many people do not understand the packaging process of lithium battery soft packs. Technology will share with you the packaging process of lithium battery soft pack through this article.
1. Soft pack battery.
The soft-wrapped cells that everyone has encountered are all cells that use aluminum-plastic film as the packaging material. Different packaging materials determine the use of different packaging methods. Welding is used for packaging batteries.
2. The outer layer of outer packaging, aluminum plastic film.
The aluminum-plastic composite film can be roughly divided into three layers – the inner layer is the bonding layer, and polyethylene or polypropylene materials are mostly used to play the role of sealing and bonding; the middle layer is aluminum foil, which can avoid the infiltration of water vapor from the outside of the battery. At the same time, the leakage of the internal electrolyte is avoided; the outer layer is a protective layer, and high-melting polyester or nylon materials are mostly used, which have strong mechanical properties, avoid damage to the battery by external forces, and protect the battery.
3. Aluminum-plastic film stamping forming process.
The soft-packed cells can be designed into different sizes according to the needs of customers. After the external dimensions are designed, the corresponding molds need to be opened to stamp and form the aluminum-plastic film. The forming process is also called punching, which is to use a forming die to punch out a core-rolling hole on the aluminum-plastic film.
4. Packaging side sealing, top sealing process.
The packaging process includes two processes of top sealing and side sealing. The first step is to put the wound core into the punched pit, and then fold the unpunched side along the punched pit side.
5. Liquid injection and pre-sealing process.
After the soft-packed cells are sealed on the top side, x-ray must be done to check the parallelism of the core, and then enter the drying room to remove moisture. After standing in the drying room for a few times, it enters the liquid injection and pre-sealing process.
6. Standing, forming, fixture shaping.
After the liquid injection and sealing are completed, the cells need to be left to stand. According to the difference in the production process, it is divided into high temperature static and normal temperature static. The effect of standing is to allow the injected electrolyte to fully infiltrate the machine. , which can then be used to make
7. Two sealing process.
During the second seal, the first step is to puncture the air bag with a guillotine knife, and at the same time, vacuumize, so that the gas and a part of the electrolyte in the air bag will be drawn out. Then immediately carry out the second seal to ensure the airtightness of the cell. Finally, the air bag is cut off, and a soft-packed cell is almost formed.
8. Post-processing.
After the two air bags are cut, it is necessary to trim and fold the edges to ensure that the width of the cells does not exceed the standard. The folded cells will enter the capacity distribution cabinet for capacity separation, which is actually a capacity test.

Lithium Batteries May One Day Replace Conventional Submarine Diesel Engines

Lithium Batteries May One Day Replace Conventional Submarine Diesel Engines

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With the advancement of lithium technology, it is possible that lithium batteries may one day replace conventional submarines’ diesel engines. The Japanese Navy has already implemented the use of LIBs in its Soryu-class attack subs. South Korea is also testing the technology for their next-generation attack subs. Other applications for LIBs include the US Special Forces delivery vehicle, as well as the Russian Surrogat unmanned mini-sub.

However, the technology has its drawbacks. Lithium is flammable and can catch fire when exposed to water. Leaks in lithium can reach temperatures of 3,600 degrees Fahrenheit. Furthermore, a fire in a lithium battery releases hydrogen gas, which is highly flammable. While the benefits of using lithium batteries for submarines are numerous, there are still significant concerns about the safety of this technology.

While there are a number of downsides to lithium-ion batteries, the technology has proven to be reliable. Japan, for example, plans to build one more Soryu-class submarine with LIBs. The development of a LIB-submarine would also allow Japan to upgrade its older Stirling AIP powered Soryus. So, while LIBs present certain risks, they are expected to make an impact in the future of submarine propulsion.

While LIBs have some risks, these batteries have been proven to be safer than lead-acid batteries. The research and development of light-metal batteries will benefit from this data. The US Navy has already chosen lithium-ion main batteries for its KSS-III batch 2 submarines. In addition, South Korea has chosen to use lithium-ion batteries in its nuclear-powered Soryu-class boats. The seventh Soryu-class boat is also expected to incorporate a combination of Stirling Engines and lithium-ion batteries. These vessels will serve as a bridge between lead-acid and lithium-ion technologies.

The development of LIB batteries is a challenge for the lead-acid-powered submarines. They can’t be fully replaced by lead-acid batteries and will remain a major asset for the military for years to come. But the advancements in the technology have opened up new doors for submarines. The resulting improved performance means they can cruise for longer periods of time under the water.

Despite the risks of Lithium-ion batteries, they are the most reliable option for submarines. Although the lithium-ion batteries are safer than lead-acid batteries, they do have some drawbacks. In addition to high cost, they have high maintenance and are not completely safe to use in the ocean. Moreover, they are expensive to operate, requiring extensive maintenance.

The benefits of LIBs are considerable. In addition to their high-speed capability, they are also incredibly safe and durable. If the marine environment is a threat to the life of a submarine, it is essential to ensure that it is safe to use and a reliable and long-lasting power supply. Ultimately, LIBs will save lives. But for now, these batteries are not without risks.

Because of the huge benefits of lithium-ion batteries for underwater vehicles, they have many other advantages. Compared to conventional submarines, they have a lower cost than lead-acid submarines. They can also be operated for longer periods of time. This makes lithium-ion-powered subs an attractive option for many companies and governments. This technology can be used in other fields as well, including for commercial purposes.

The use of lithium batteries for conventional submarines could dramatically reduce their costs. The cost of lithium-ion batteries could be cheaper than traditional lead-acid batteries, and the technology may be more efficient than lead-acid. Additionally, the high-energy density of lithium-ion-based batteries will provide longer service life. They are also more reliable than lead-acid batteries.

The development of lithium-ion batteries for submarines is an exciting development. The advanced batteries will give the submarines better endurance under water, which is crucial for a modern submarine. These batteries may also be the main power supply for conventional submarines. They are not only cheaper than lead-acid batteries, but they are lighter, more efficient and more environmentally friendly. In the future, these submarines may use this technology to be able to operate at greater depths than ever before.

Области применения перезаряжаемых литий-полимерных батарей

Области применения перезаряжаемых литий-полимерных батарей

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A lithium polymer battery pack is made of a number of lipo cells. The configuration of these cells determines their voltage, capacity, and C rating. They can be arranged in parallel or series, depending on the type of battery. Arrangements of these cells affect the capacity and voltage of the battery pack. It is important to avoid mixing different types of cells because they will not work well together. A poorly matched pack can lead to underperformance.

Another application of rechargeable lithium polymer battery pack is in medical devices. These batteries can be used in radios and media devices, as they are lighter and offer more power. They can also be used in electric vehicles. These batteries are lightweight and compact, making them an ideal choice for such applications. They can provide power for a long time and can be easily transported. Some of these batteries are designed to be reusable.

Rechargeable lithium polymer battery is an excellent choice for electric vehicles. Its high energy density makes it a desirable option for electric vehicles. This type of battery is also great for radio-controlled devices. Its compact design makes it easy to carry and transport. In addition to automobiles, the lithium polymer battery is also used for other applications. It can power personal digital assistants and pagers, and can be found in many other devices.

In addition to these devices, the lithium polymer battery is the ideal solution for various industrial applications. Its low cost makes it an ideal choice for many uses. Its high capacity makes it an excellent choice for a wide range of industries. Whether it is an oil-injection system or a pager, the battery is an excellent solution. And it is a great option for electric vehicles. Those who use it in their daily lives will love the versatility of this type of battery.

The lithium polymer battery has been in development for over a decade. Its replacement for nickel-metal hydride batteries is a major step in the evolution of digital products. China-based electronics manufacturers, in particular, are focusing on developing new products based on consumer preferences. In addition to providing power for electric vehicles, the high-end technology of the rechargeable lithium polymer battery is an excellent solution for the medical industry.

Как определить потерю заряда литиевого аккумулятора 18650

Как определить потерю заряда литиевого аккумулятора 18650

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Как обнаружить потерю заряда литиевого аккумулятора 18650?
1. Потребляемая мощность батареи: напряжение на батарее не растет, а емкость уменьшается. Измерьте напряжение непосредственно вольтметром, если напряжение на батарее 18650 ниже 2,7 В или напряжение отсутствует. Это означает, что батарея или батарейный блок повреждены. Нормальное напряжение составляет 3.0V ~ 4.2V (обычно батарея 3.0V отключает напряжение, батарея 4.2V полностью заряжена, а некоторые имеют напряжение 4.35V).
2. Если напряжение аккумулятора ниже 2,7 В, вы можете использовать зарядное устройство (4,2 В) для зарядки аккумулятора. Через десять минут, если напряжение аккумулятора восстановилось, можно продолжить зарядку до тех пор, пока зарядное устройство не покажет, что он полностью заряжен, а затем проверить полное напряжение.
Если напряжение при полной зарядке составляет 4,2 В, это означает, что батарея в порядке. Возможно, при последнем использовании потребление энергии было слишком большим, и батарея отключилась. Если напряжение полного заряда намного ниже 4,2 В, это означает, что батарея повреждена. Если батарея использовалась в течение длительного времени, можно судить о том, что срок ее службы истек и емкость в основном исчерпана. ее следует заменить. В принципе, починить ее невозможно. Ведь литиевые батареи имеют срок службы, не бесконечный.
3. Если при измерении литиевого аккумулятора 18650 на нем отсутствует напряжение, то на данный момент возможны две ситуации. Одна из них заключается в том, что батарея изначально была хорошей, а причиной ее разрядки стало длительное хранение без питания. У такого аккумулятора есть определенная вероятность восстановления. Как правило, она активируется импульсом литиевой батареи. С помощью прибора (прибор для зарядки и разрядки литиевых батарей) можно зарядить батарею несколько раз за короткий промежуток времени. Как правило, стоимость ремонта невелика, и лучше купить новый. Другой вариант - батарея полностью изношена, сепаратор батареи разрушен, а положительный и отрицательный электроды замкнуты. Починить такое невозможно, просто купите новый.
Принцип метода ремонта литиевых аккумуляторов 18650:
1. Металлическая поверхность литиевого аккумулятора 18650, который использовался в течение длительного времени, в определенной степени окисляется, что приводит к плохому контакту между аккумулятором мобильного телефона и мобильным телефоном, и время использования литиевого аккумулятора сокращается. Ржавые вещества улучшают контакт аккумулятора с телефоном.
2. Низкая температура может изменить электролит внутри литиевого аккумулятора и способствовать химической реакции только что замороженного аккумулятора. Использование литиевых батарей фактически представляет собой процесс зарядки и разрядки. В это время отрицательные и положительные заряды в батарее сталкиваются друг с другом. Когда литиевая батарея помещается в среду с низкой температурой, микроструктура литиевой пленки на поверхности литиевой батареи и электролита, а также их границы раздела значительно изменяются, что приводит к временному бездействию внутри батареи и уменьшению тока утечки. Поэтому после повторной зарядки время работы телефона в режиме ожидания увеличится.
Срок службы литиевого аккумулятора составляет около 600 циклов. Если заряжать слишком часто, тепловое движение молекул постепенно разрушит микроструктуру внутренней молекулярной структуры, и эффективность хранения электрических зарядов будет постепенно снижаться.

Меры предосторожности при использовании литий-полимерных батарей

Меры предосторожности при использовании литий-полимерных батарей

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Precautions for the use of polymer lithium-ion batteries.

1. It is forbidden to disassemble the battery under any circumstances.

2. It is forbidden to immerse the battery in water or sea water, and it cannot be damp.

3. It is forbidden to use or place batteries near heat sources, such as fires, heaters, etc.

4. It is forbidden to heat the battery or throw it into fire.

5. It is forbidden to directly weld the battery.

6. It is forbidden to charge in a fire or a very hot environment.

7. It is forbidden to put the battery into the microwave oven or high pressure container.

8. It is forbidden to use or place the battery under high temperature (such as strong sunlight or very hot car), otherwise it will cause overheating, fire or function decline and shortened life.

9. In theory, there is no flowing electrolyte in the polymer lithium-ion battery, but if the electrolyte leaks and comes into contact with the skin, eyes or other parts of the body, immediately rinse the electrolyte with clean water and seek medical attention.

10. It is forbidden to use damaged cells (the plastic edge of the cell is damaged, the casing is damaged, the electrolyte gas is smelled, the electrolyte leaks, etc.).

In order to prevent the polymer lithium-ion battery from leaking, heating, and exploding, please pay attention to taking relevant precautions. If you are not sure, you can check the reasons that affect the number of cycles and life of the lithium-ion battery. Only know how to use polymer lithium correctly Ion batteries can maximize the battery’s electrical performance and have a longer service life.

Как сделать аккумуляторную батарею 12v LiFePO4 из элемента 32650 LiFePO4

Как сделать аккумуляторную батарею 12v LiFePO4 из элемента 32650 LiFePO4

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Nowadays, many rechargeable electrical appliances in life use lithium batteries, such as soft packs, cylindrical, rectangular and so on. Among them, cylindrical lithium batteries are divided into various models according to their size, such as the most common 18650, 22650, 32650 and so on. The number 18 in the model like 18650 indicates the diameter of the battery, 65 indicates the length of the battery, and 0 indicates that the battery is a cylinder.

The voltage of a single-cell lithium battery is generally 3.2V to 3.7v, and the voltage used by many electronic devices is 12V, so we need to use multiple lithium batteries to form a group to achieve 12v, and the lithium battery assembly also needs to be equipped with a protective plate.

The main purpose of the protection board is to play overload protection, short circuit protection, overheat protection, low voltage protection, overvoltage protection, battery balance, overcharge protection, etc., mainly to protect the battery from being damaged.

Since the capacity of a single battery is relatively small, 12 32650 lithium batteries are prepared, four are connected in series to form a group of 12V, and then three groups of 12V are connected in parallel to increase the capacity and voltage.

Assembling the battery requires the use of nickel tape, high temperature tape, and battery brackets.

Generally, the connection of lithium batteries is to use spot welding to bring the nickel to the point. If there is no spot welding machine, you can use sandpaper to polish both ends of the battery, and then you can use an electric soldering iron to weld.

Get the battery line, measure the voltage, and see if the capacity is the same. Don’t put the different ones together.

Then install the battery and battery holder and arrange them in a positive and negative order.

Then wrap the heat resistant tape around it.

Connect the batteries with nickel tape, a soldering iron will do without a spot welder. By the way, stick the protective plate on top of the tape.

For the effect of spot welding of nickel strips, it is necessary to distinguish which one is connected with which one, otherwise it will cause a short circuit.

Then solder the protection board and the plug. Generally, the protection board will indicate the connection method in detail, and it is enough to connect with wires.

If you feel that one plug is too few, you can add another one, and the 12V lithium battery is completed.

Советы по увеличению продолжительности циклов литий-полимерных батарей

Советы по увеличению продолжительности циклов литий-полимерных батарей

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Как продлить срок службы полимерной литиевой батареи? Это вопрос, который хочет знать каждый. Профессиональный производитель литиевых батарей Nuranu делится:

1. При зарядке полимерно-литиевой батареи лучше всего выбирать оригинальное специальное зарядное устройство, иначе это может повлиять на полимерно-литиевую батарею или повредить ее.

2. Лучше всего заряжать полимерную литиевую батарею медленным способом и стараться избегать быстрой зарядки. Многократная зарядка и разрядка также повлияет на срок службы полимерно-литиевого аккумулятора.

3. Если мобильный телефон не используется более 7 дней, полимерно-литиевую батарею следует полностью зарядить перед использованием. Полимерно-литиевая батарея имеет свойство саморазряда.

4. Время зарядки полимерной литиевой батареи не должно быть максимально долгим. При использовании обычных зарядных устройств, когда полимерная литиевая батарея полностью заряжена, следует немедленно прекратить зарядку, иначе полимерная литиевая батарея ухудшит свои характеристики из-за нагрева или перегрева.

5. После зарядки полимерно-литиевой батареи старайтесь не ставить ее на зарядное устройство более чем на 10 часов. Если телефон не используется в течение длительного времени, мобильный телефон и полимерно-литиевый аккумулятор следует разделить.

Меры предосторожности：

Полимерно-литиевую батарею не нужно заряжать первые 3 раза. Его нужно только полностью зарядить. Для этого потребуется не более получаса после полной зарядки. Перезаряд и переразряд серьезно повлияют на срок службы полимерно-литиевой батареи. Обычно следует обращать внимание на зарядку. Лучше всего использовать оригинальное зарядное устройство, а универсальное зарядное устройство использовать не рекомендуется.

5 советов по зарядке литий-полимерных аккумуляторов

5 советов по зарядке литий-полимерных аккумуляторов

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Talking about charging Li-Polymer batteries, we decided to list our 5 tips for charging Li-Polymer batteries. Now because almost all drones use lithium polymer batteries (LiPo), only lithium polymer batteries are discussed in this article.

1. First make sure you are using the correct charger.

Charge any polymer lithium battery at 1C, almost all drone lithium batteries can be charged at 1C and should be charged at that rate. 1C charging does take a bit of time, but this charging speed is the easiest for your lithium battery charger and won’t cause overheating. This charging rate will give your battery the longest life possible, letting the balance port do its job. For example, a 3400mAh battery charging at 1C sets the charger to a 3.4 amp charge rate.
Both the battery and the battery pack are charged in a fireproof bag during charging, and I don’t see any reason why the battery should not be charged in a fireproof bag. If your charger comes with a temperature probe, be sure to put it in the bag. If everything is packed in a fireproof bag, you can easily and complete the charging.

2. Don’t let your battery go below the minimum voltage.

It’s a flight issue, not a charging issue, but it needs to be addressed. When flying, try not to let the battery drain until the speed control starts to turn off, unless you replace it. Then you have more time, more power until you land the drone. This avoids drone fried chicken, and you can control the minimum speed cutoff, set above the minimum voltage of the battery pack to allow some extra time to set the landing. I like to time my first flight until the speed control cuts off and then set my timer for a minute before the launcher and on all voyages after that I find that the launcher timer is off as soon as I land mine drone.

3. An accident will happen unless the manufacturer’s battery allows it.

Charge the battery above 1C, if the battery is using a higher charge rate, this can save a lot of time when needed. Try not to charge these batteries with a higher rating if you don’t need to. But other than that, I always use the slower rate at home because it increases battery life.

4. Please don’t leave the room when your battery is on the charger.

This is a mistake almost everyone makes, and the number one safety issue when charging. This prevents any minor accident from becoming a major event if not leaving the room. When you are not in the room, while charging, a fire can happen at any time. While charging, you need to be there to monitor your battery. If you must leave the room, stop the charger and disconnect the battery from the charging cable. Then when you go back to the room to charge again.

5. What if your battery has not been used for more than a week, then please charge your batteries, this will keep them balanced and stable.

Storing charge prevents individual cells from becoming unstable and out of balance. I almost always charge my battery and then fully charge it the night before.