公开(公告)号：US20210344043A1

公开(公告)日：2021-11-04

申请号：US17271595

申请日：2019-08-22

Applicant: ZEON CORPORATION

Inventor： Yusaku MATSUO ,  Taku MATSUMURA ,  Kouichirou MAEDA

IPC: H01M10/0565 ,  H01M10/0562 ,  H01M4/62

Abstract: Provided is a binder composition for an all-solid-state secondary battery with which it is possible to produce a slurry composition for a solid electrolyte-containing layer having good leveling performance and to form a solid electrolyte-containing layer that can cause an all-solid-state secondary battery to display excellent output characteristics. The binder composition for an all-solid-state secondary battery contains a first polymer, a second polymer, and a solvent. The first polymer is poorly soluble in the solvent. The second polymer includes a nitrile group-containing monomer unit and is highly soluble in the solvent.

公开(公告)号：US20210036311A1

公开(公告)日：2021-02-04

申请号：US16644958

申请日：2018-08-24

Applicant: ZEON CORPORATION

Inventor： Taku MATSUMURA

IPC: H01M4/36 ,  H01M10/0565 ,  H01M10/0562

Abstract: Provided are composite particles for an all-solid-state secondary battery electrode with which it is possible to form an electrode for an all-solid-state secondary battery that can cause an all-solid-state secondary battery to display excellent output characteristics, and a method of producing these composite particles. The composite particles for an all-solid-state secondary battery electrode contain an electrode active material, a binder, and an inorganic solid electrolyte that is distributed more in an outer part than in an inner part, and have a volume-average particle diameter of not less than 5 μm and not more than 90 μm. The method of producing the composite particles for an all-solid-state secondary battery electrode includes granulating a slurry composition containing an electrode active material and a binder to obtain base particles and externally adding an inorganic solid electrolyte to the base particles.