The National Standardization Administration of the State Administration for Market Regulation and Administration issued GB 31241-2022 “Safety Technical Specifications for Lithium Ion Batteries and Battery Packs for Portable Electronic Products” on December 29, 2022, replacing GB 31241-2014. The mandatory implementation date is January 2024. On January 1, at the same time, GB 31241-2014 will be invalid.
　　
Detailed standard differences are summarized as follows:
　　
main technical changes
　　
1. term was updated
　　
① The definitions of the terms lithium-ion battery, lithium-ion battery pack, upper charging voltage, upper charging temperature and upper discharging temperature have been changed;
　　
② Add the terms nominal voltage, rated energy, reference test current, charging limit voltage, discharge termination voltage, lower limit charging temperature, lower limit discharge temperature and the maximum allowable battery surface temperature and definitions;
　　
③ The terms deflation and rupture and definitions have been deleted.
　　
2. The voltage measurement tolerance has been changed and the speed measurement tolerance has been added.
　　
3. The temperature measurement method, charging and discharging procedures for testing, sample capacity test, sample pretreatment, test items and test sequence have been changed.
　　
4. Changes have been made to general safety considerations, safety working parameters, and requirements for identification and warning instructions.
　　
5. High temperature external short circuit, overcharge and forced discharge have been changed, and normal temperature external short circuit has been deleted.
　　
6. Changes were made to low air pressure, temperature cycling, vibration, acceleration impact, and extrusion.
　　
7. Changes to low air pressure, temperature cycling, vibration, drop and flame retardant requirements.
　　
8. Changed overview, overvoltage charging, overcurrent charging, overcurrent discharge, and reverse charging, and moved electrostatic discharge to sample pretreatment.
　　
9. The overview, overcurrent charging protection and overcurrent discharge protection have been changed, and high voltage resistance has been removed.
　　
10. Changes to overview and charge and discharge temperature control.
　　
11. Change consistency requirements and test requirements.
　　
12. Added working range examples, swallow gauge test tooling, safety-critical components reference standards and flammability test methods.
　　
13. The test order was changed.
　　
14. Removed examples of quality control process requirements, design and manufacturing processes, examples of working scope for lithium cobaltate-graphite system batteries, and heavy weight impact test tooling.
　　
　　Detailed summary of differences