How to choose a lithium battery for electric vehicles? How to improve security?

The lithium batteries used in electric vehicles are mainly divided into ternary lithium, lithium iron phosphate, and lithium manganese oxide. The specific data summary of these three batteries is shown in Figure 1.

Lithium iron phosphate batteries have the best stability and highest cycle life, but their capacity is not as high as ternary lithium batteries. Ternary lithium batteries have gained more popularity in the market due to their higher energy density ratio, but their stability is poor. The lithium battery explosion accidents reported in the news often involve ternary lithium batteries. Lithium manganese oxide batteries are a relatively affordable option. You can make choices based on a comprehensive evaluation of their characteristics to meet your own needs.

In news reports, electric vehicle explosions often occur, so consumers need to pay attention when choosing and using lithium batteries. So what measures can improve the safety of lithium batteries?

1. Purchase original large brand lithium batteries;

2. It is strictly prohibited to modify battery packs, especially lead-acid batteries modified with lithium batteries;

3. Keep the battery away from open flames and high temperatures;

4. Try to avoid indoor charging as much as possible;

5. Choose a charger with overcharge protection, specifically designed for use on a car;

6. It is prohibited to use street fast charging devices to charge lithium batteries.

7. The battery pack needs to be repaired and tested in a timely manner in case of water ingress, immersion, immersion, falling, and collision;

8. If the entire vehicle is not used for a long time (more than 7 days), it needs to be powered off, and it is recommended to maintain the battery every 2 months.

Shenzhen Topband Battery Co., Ltd.，established in 2006, is a wholly-owned subsidiary of Shenzhen Topband Co., Ltd. (002139.SZ). We focus on lithium iron phosphate batteries,with independent research and development in cells and BMS. With the ability to integrate the entire industry chain, we are committed to providing customers with one-stop lithium battery solutions and services. Our quality products are widely used in energy storage and light power.