All-Solid-State Batteries: Current Status and Plans for Mass Production

  Although the Toyota/Tokyo Institute of Technology collaboration and Hitachi Zosen, which were expected to lead the world in the mass production of all-solid-state batteries, have postponed their material development schedules, an increasing number of semi-solid-state/all-solid-state batteries (hereafter referred to as solid-state batteries) have been launched by other companies. This is because there are many advantages unique to solid-state batteries, and many different technologies, including "semi" solid-state batteries, have been proposed. However, it is the start-ups that are leading the way to mass production for EV applications, and the major automotive battery makers have either proposed a later date or have not stated their commitment at this time.

  This report focuses on mass-produced lithium-ion solid-state batteries, regardless of their application. In addition, as the movement toward adoption in passenger BEVs is particularly active, this report summarizes the plans announced by each automaker and outlines the products of all solid-state battery suppliers involved in those plans.

  Note: In this report, mass production is defined as the state in which cells can be supplied on a commercial basis. Therefore, even if the quantities were large, those supplied for prototype and demonstration purposes are not treated as mass production.

  Information on these solid-state batteries was collected through the websites and presentations by the companies involved through January 2023, as well as through coverage of the following exhibitions.

The recent surge in the topic of all-solid-state batteries was triggered by the sulfide electrolyte developed by the collaboration of Toyota Motor Corporation and the Tokyo Institute of Technology, which had a tremendous impact on the spread of research. In a presentation given at the 15th Automotive World (January 2023) by Professor Ryoji Kanno, Ph.D. in engineering at the same university, he emphasized that there are still many issues to be resolved before widespread adoption.

It seems that Maxell, Ltd. (Maxell) will take the lead in introducing sulfide solid electrolytes to the market in 2023. Mitsui Mining & Smelting Co., Ltd. (Mitsui Mining) developed the argyrodite-type electrolyte that is the material for this. Mr. Tsukasa Takahashi, Deputy General Manager of Mitsui Mining's Business Creation Sector gave a presentation at the 9th BATTERY Japan in Osaka, explaining the advantages and disadvantages of each sulfide material and the characteristics of argyrodite.

Analysis Report Lithium-Ion Battery:
Analysis Report: Lithium-Ion Battery (Japanese, European, North American and Korean Markets) (Nov. 2022)
Analysis Report: Lithium-Ion Battery (Chinese Market) (May. 2022)

Related Reports:
Smart Energy Week Autumn 2022: Battery-related Technologies (Sep. 2022)
The Battery Show Europe 2022 - Electric and Hybrid Vehicle Technology Expo (4) (Aug. 2022)
Battery Manufacturing, Supply Chains, and Chemistry Evolution (Jan. 2022)
30th Aachen Colloquium - Sustainable Mobility (Nov. 2021)
Toyota's Development and Supply of Batteries: Investing JPY 1.5 trillion by 2030 (Oct. 2021)
Battery Raw Materials - Where from and Where to? (Sep. 2021)
EV battery technologies on thermal management, materials, and solid state batteries (Aug. 2021)
EV market and battery production - current market trend and future outlook (Jul. 2021)
Status of All-Solid-State Battery Development for Automotive Applications (Dec. 2020)