公开(公告)号：US20210202984A1

公开(公告)日：2021-07-01

申请号：US17058661

申请日：2019-05-15

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takeshi FUJINO ,  Kazuki SAIMEN ,  Atsushi SAKURAI

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M4/62 ,  C01G23/00 ,  C01G25/00

Abstract: Provided are lithium ions for achieving a lithium-ion secondary battery which is less susceptible to rises in internal resistance even over repeated charge-discharge cycles and which has excellent durability with respect to charge-discharge cycles.
A lithium-ion secondary battery 1 is provided with: a positive electrode; a negative electrode 7; a separator 8; an electrolyte solution 9; and a container 10 that houses the positive electrode 4, the negative electrode 7, the separator 8, and the electrolyte solution 9. At least one of the positive electrode mixture layer 3 or the negative electrode mixture layer 6 contains high-dielectric oxide solids 13, and the positive electrode active material 11 or the negative electrode active material 12 has a surface with portions thereof in contact with the high-dielectric oxide solids 13 and portions thereof in contact with the electrolyte solution 9.