The RCH testing of lithium batteries is an important means of evaluating their performance and safety. Through these tests, we can understand the performance and safety of batteries under different conditions, and provide important reference for the development and improvement of batteries.

Lithium battery RCH test

1. R test: Test the charging and discharging performance of the battery, evaluate its performance under different charging and discharging states through cyclic charging and discharging processes, such as capacity, charging and discharging efficiency, energy density, and other parameters.

2. C test: Test the cycle life of the battery, evaluate the battery's lifespan and capacity loss by simulating the charging and discharging cycles of the battery in actual use. By conducting the C test, we can understand the degree of performance degradation of the battery under different charging and discharging conditions.

3. H testing: Testing the safety of batteries by examining their performance under extreme conditions such as high temperature, overcharging, and overdischarging to evaluate their safety performance. H testing can identify potential safety hazards in batteries and ensure their safety during use.

Test purpose

The purpose of RCH testing for lithium batteries is to evaluate their performance under R (reverse), C (charging), and H (high temperature) conditions, in order to ensure their safety and reliability in practical use.

Testing equipment and methods

1. Equipment: Lithium battery testing cabinet, constant temperature box, charge and discharge tester, data acquisition system, etc.

2. Method: According to the testing standards, place the lithium battery in a constant temperature chamber to simulate a high-temperature environment. Then, the lithium battery is subjected to reverse charging and discharging operations using a charging and discharging tester, and data is recorded in real-time.

Problem examples and improvement measures

1. Problem: During the charging process, some lithium batteries experience a rapid temperature rise.

Improvement measures: Optimize charging strategy, reduce charging current to slow down temperature rise rate.

2. Problem: The capacity of some lithium batteries has decreased.

Improvement measures: Optimize the manufacturing process of lithium batteries to improve their capacity retention rate in high-temperature environments.

Conclusion

Through RCH testing, we can discover the performance of lithium batteries in high-temperature environments, which can be optimized to address existing issues and provide strong guarantees for their safety and reliability in practical applications.