Polymer lithium battery is a new type of high energy density lithium-ion battery, and its national standard is \"polymer lithium ion battery\" (GB\/T 31241-2014). The standard was developed and published by the Standardization Administration of China and is applicable to the design, manufacture, testing and use of polymer lithium-ion batteries.
The standard mainly includes the following contents:
1. Terms and definitions: This paper introduces the terms and definitions related to polymer lithium-ion batteries.
2. Specifications and models: The specifications and models of polymer lithium-ion batteries are specified.
3. Quality requirements: including battery capacity, operating voltage, discharge platform, cycle life, self-discharge rate, temperature characteristics, safety and other requirements.
4. Test method: The test method of polymer lithium-ion battery is specified, including static, charge and discharge, cycle life, self-discharge, temperature characteristics, appearance inspection, safety and other tests.
5. Marking, packaging, transportation and storage: the requirements for marking, packaging, transportation and storage of polymer lithium-ion batteries are specified.
6. Safety measures: The safety measures of polymer lithium-ion batteries are introduced, including measures to prevent short circuit, overcharge, overdischarge, high temperature, vibration, etc.
The formulation and implementation of national standards for polymer lithium batteries is conducive to regulating the production, sales and use of polymer lithium batteries, improving their quality and safety, and promoting the healthy development of the battery industry.
Safety and electrical performance:
1. Battery safety performance
2. Environmental adaptability
3. Electrical properties
Different standards have different focuses on the detection of batteries:
IEC61960 mainly focuses on the electrical performance test of lithium batteries;
IEC62133 and Japan JISC8714 requirements focus on product use safety and environmental adaptability safety;
GB\/T18287 not only includes some safety testing items, but also covers performance testing;
The UL2054 and UL1642 comprehensively examine the safety of cells and batteries under various operating conditions, including failure conditions, heavy pressure conditions, and combustion conditions.
In the test of class 3C lithium batteries, in order to ensure the stability of the test and improve the efficiency of the battery test, it is necessary to use the shrapnel micro-needle module that can transmit large current. As a battery test module, it can mainly play a stable connection role, which can exceed 50A large current and has reliable performance.