How to improve the safety of batteries?

In the power Lithium Battery safety realization, from the perspective of battery companies should do what specific aspects of improvement, to really prevent this grey rhino, high-tech lithium through in-depth exchanges with industry experts, industry chain upstream and downstream enterprises, put forward the following suggestions:

First, in the choice of materials, the choice of core materials will have a direct impact on the safety of the final cell product.

The safety of the Lithium Iron Phosphate Battery cell depends largely on the core material, especially for the high-nickel ternary system, the metal foreign body content of the cathode material, the residual lithium and the PH value will have a great impact on the safety performance of the Lithium Polymer Battery cell.

The second is to do a good job of safety redundancy and early warning monitoring in the design of batteries, modules, packs and process settings.

In the design process, the first step is to ensure the chemical stability of the battery cell, select a stable material and test its stability through strict evaluation; in the module part, the cell is protected from impact by the structure. The third stage is the pack. In addition to physical protection measures, the key is to diagnose the core module through BMS, monitor the occurrence of anomalies, and predict possible problems in order to control the problem.

Third, in the pre-testing and verification, we should do a good job of verification.

In fact, this is the current domestic power LiFePO4 Battery field is currently facing the biggest problem, on the one hand, the rapid replacement of products, on the other hand, the test and verification to consume time and energy and the lack of design reference related experience, which is also an important reason for the frequent accidents in recent years.