Production Method for Nickel-Containing Hydroxide
Summary
The European Patent Office published patent application EP3470375A1 for Sumitomo Metal Mining Co., Ltd., covering a production method for nickel-containing hydroxide. The invention relates to cathode material manufacturing for lithium-ion batteries. The patent application names seven inventors and covers the designated European member states including DE, FR, GB, IT, and ES.
What changed
The EPO published Sumitomo Metal Mining's patent application for a nickel-containing hydroxide production method (EP3470375A1), classified under IPC C01G 53/00 and H01M 4/505/525 for battery applications. The patent names seven inventors and designates 34 European states including Germany, France, and the United Kingdom.
Patent holders and licensees in the battery materials supply chain should review this publication to identify potential freedom-to-operate considerations. Any entity manufacturing nickel hydroxide for battery applications should assess whether their production methods could conflict with Sumitomo Metal Mining's claimed processes.
Source document (simplified)
PRODUCTION METHOD FOR NICKEL-CONTAINING HYDROXIDE
Publication EP3470375A1 Kind: A1 Mar 25, 2026
Applicants
Sumitomo Metal Mining Co., Ltd.
Inventors
NAKAKURA, Shuhei, TSUCHIOKA, Kazuhiko, MAKI, Koichiro, SARUWATARI, Motoaki, RYOSHI, Kazuomi, NAKAO, Yoshihiko, YOSHIDA, Masafumi
IPC Classifications
C01G 53/00 20060101AFI20190517BHEP H01M 4/505 20100101ALI20190517BHEP H01M 4/525 20100101ALI20190517BHEP C01G 53/04 20060101ALI20190517BHEP
Designated States
AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
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