The service life of polymer lithium batteries and 18650 lithium batteries。
The comprehensive performance testing and comparative analysis of lithium polymer and 18650 lithium battery show that under the same testing conditions, the service life of lithium polymer is generally longer than that of 18650 lithium battery.
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18650 lithium battery is a cylindrical lithium-ion battery wrapped in a metal casing, which provides relatively safe physical protection for the casing. Polymer batteries are packaged with aluminum-plastic film, which is relatively fragile and prone to scratches, dents, and skin damage. If a polymer battery accidentally falls to the ground, the anode ears of the battery are easily broken.
If the lithium polymer and 18650 battery use the same ternary materials, polymer and 18650 battery storage conditions, polymer and battery charging and discharging conditions, 18650 and 18650 have the same polymer cycling conditions, similar standard voltage standard structures and working environments, in fact, 18650 is basically depleted, and polymer batteries are durable.
The durability of 18650 lithium batteries and lithium polymers mainly depends on their application scenarios. If you put a Bluetooth earphone, even if the 18650 battery is durable, the box size is not limited. It is recommended to use 18650, which is more durable.
Which is more expensive, 18650 lithium battery or lithium polymer?
1. The price of polymer and 18650, among which expensive mobile power banks are calculated based on 5000mAh batteries. 18650 requires at least two 2600 batteries in parallel to reach 5000mAh, while polymer can vary in size to reach 5000mAh. Create the shape you desire; At present, only Panasonic Sanyo monomers can reach a maximum of 3200MAH, and polymer batteries with 5000MAH can be purchased.
Polymers with the same price are much more expensive. For example, in China, the price of 5000MAH polymer is 35 yuan, and even two parallel prices of 18650 are 27 yuan. However, 18650 is more risky than polymer batteries and is prone to explosion. Suggest choosing polymer batteries, safety comes first.
Which is safe between 18650 and polymer batteries
1. 18650 and polymer structure design safety must first understand the battery. If there are no structural design issues with 18650 lithium batteries and lithium polymer batteries, the reason for the charger needs to be identified. It is easy to find the requirements for the charging current setting specifications of 18650 and polymer batteries.
2. 18650 and polymer also pay attention to consumer safety, using lithium batteries correctly to ensure battery safety. Of course, consumers also have an obligation to use batteries correctly, which is related to 18650 and polymers, but this is not absolute. The failure of Apple's lithium battery has also caused equivalent safety issues for global brand Samsung's lithium battery, resulting in a market value of N billion yuan for the company.
Relatively speaking, improper use of polymer batteries can easily lead to drum shaped combustion, while improper use of lithium batteries can easily cause explosions, indicating that improper use of batteries may pose safety hazards.
Polymer and 18650 Durable
Which is better, 18650 lithium battery or lithium polymer? It's really hard to draw a conclusion whether 18650 lithium batteries are better or polymer batteries. But if used improperly, even the best battery can easily break down. However, the structure of polymer batteries is complex. In addition to considering the safety of normal electrical performance, it is also necessary to consider factors such as the appearance of the packaged components, which can easily break the positive terminal during the packaging process.
