Concept_GUANGDONG CVATOP NEW ENERGY TECHNOLOGY CO.，LTD

Innovation / R&D design concept

We adhere to independent innovation, break the conventional thinking, grasp the essence of the problem in the spirit of inquiry, understand the scientific law, focus on basic research and development, and study the mechanism, so as to improve product performance and realize profitable production in essence.

Innovative materials / battery design

The ternary and lithium manganate batteries produced by us have attracted the attention of lithium battery experts because of their non-toxic, pollution-free, high safety, long cycle life and stable charging and discharging platform.

Innovation / process test method

Look forward to the needs of customers and the market, design and design products, and the testing ability covers all aspects and multi-dimensional projects such as performance, reliability, electrical, software, mechanical environmental safety, etc; At the same time, the existing test methods are continuously optimized, and new test methods are developed according to the requirements.

High temperature performance test

After the battery is fully charged, place it at 55 ± 2 ℃ for 2h, and measure the discharge capacity of 0.2C.
Magnification and cycle performance

After standard charging, set aside for 30min, discharge at 0.2C to 3.0V, and set aside for 30min until the above steps are cycled until the battery is cycled for 300 times, and the test temperature is 23 ± 2 ℃.
Constant temperature and humidity, cold and heat shock

After the battery is fully charged, let it stand for 1 hour. After measuring the open circuit voltage, internal resistance and thickness, put the cell or battery into a constant temperature and humidity box with a temperature of 40 ± 2 ℃ and a humidity of 90% - 95% for 48 hours.
Short circuit test

After the battery is fully charged, place the battery connected with thermocouple in the fume hood, short circuit its positive and negative poles with a resistance of 80 ± 20 Ω wire, and monitor the battery temperature change. When the battery temperature drops to this peak temperature and is lower than 10 ℃, the experiment ends.