Domestic information: 94.2% share of lithium-ion battery energy storage technology by 2022,
PSE,

▍What is PSE Certification?

PSE (Product Safety of Electrical Appliance & Material) is a mandatory certification system in Japan. It is also called ‘Compliance Inspection’ which it is a mandatory market access system for electrical appliance. PSE certification is composed of two parts: EMC and product safety and it is also an important regulation of Japan safety law for electrical appliance.

▍Certification Standard for lithium batteries

Interpretation for METI Ordinance for Technical Requirements(H25.07.01)， Appendix 9，Lithium ion secondary batteries

▍Why MCM?

● Qualified facilities: MCM is equipped with qualified facilities which can be up to the whole PSE testing standards and conduct tests including forced internal short circuit etc. It enables us to provide different customized testing reports in the format of JET, TUVRH, and MCM etc.

● Technical support: MCM has a professional team of 11 technical engineers specialized in PSE testing standards and regulations, and is able to offer the latest PSE regulations and news to clients in a precise, comprehensive and prompt way.

● Diversified service: MCM can issue reports in English or Japanese to meet clients’ need. So far, MCM has completed over 5000 PSE projects for clients in total.

The deputy director of the Department of Energy Conservation and Science and Technology Equipment of the National Energy Administration recently said at a press conference, in terms of the share of new installed energy storage technologies in 2022, lithium-ion battery energy storage technology accounted for 94.2%, is still in the absolute dominant position. New compressed-air energy storage, flow battery energy storage technology accounted for 3.4% and 2.3% respectively. In addition, flywheel, gravity, sodium ion and other energy storage technologies have also entered the engineering demonstration stage.Recently, Working Group on Standards for Lithium-ion Batteries and Similar Products issued a resolution for GB 31241-2014/GB 31241-2022, clarifying the definition of pouch battery, that is, in addition to the traditional aluminum-plastic film batteries, for metal-cased batteries (except cylindrical, button cells) those thickness of the shell does not exceed 150μm can also be considered pouch batteries. This resolution was issued mainly for the following two considerations.On December 28, 2022, Japan’s METI official website issued the updated announcement of Appendix 9. The new Appendix 9 will refer to the requirements of JIS C62133-2:2020, which means PSE certification for secondary lithium battery will adapt the requirements of JIS C62133-2:2020. There is a two-year transition period, so applicants can still apply for the old version of Schedule 9 until December 28, 2024.