公开(公告)号：US20180294506A1

公开(公告)日：2018-10-11

申请号：US15766866

申请日：2016-09-30

Applicant: GS Yuasa International Ltd.

Inventor： Kaname NAKAJIMA ,  Heisuke NISHIKAWA ,  Shuji HITOMI

IPC: H01M10/04 ,  H01M10/0525 ,  H01M10/0561

Abstract: A nonaqueous electrolyte secondary battery includes a sulfur-containing positive electrode, a negative electrode, a nonaqueous electrolyte, and a cation exchange resin layer which is disposed between the positive electrode and the negative electrode and has a first surface having a roughness factor of 3 or more.A method for producing a nonaqueous electrolyte secondary battery includes a sulfur-containing positive electrode, a negative electrode, and a cation exchange resin layer which is interposed between the positive electrode and the negative electrode and has a first surface having a roughness factor of 3 or more.The method includes injecting a lithium polysulfide-containing positive electrode electrolyte between the positive electrode and the cation exchange resin layer, and injecting a negative electrode electrolyte between the negative electrode and the cation exchange resin layer, the negative electrode electrolyte having a lithium polysulfide concentration lower than that of the positive electrode electrolyte.

公开(公告)号：US20220131177A1

公开(公告)日：2022-04-28

申请号：US17517347

申请日：2021-11-02

Applicant: GS Yuasa International Ltd.

Inventor： Kaname NAKAJIMA ,  Heisuke NISHIKAWA ,  Shuji HITOMI

IPC: H01M10/04 ,  H01M10/0568 ,  H01M10/058 ,  H01M10/0567 ,  H01M4/58 ,  H01M10/052 ,  H01M50/46 ,  H01M50/409 ,  H01M50/411 ,  H01M10/0525 ,  H01M10/0561

Abstract: A nonaqueous electrolyte secondary battery includes a sulfur-containing positive electrode, a negative electrode, a nonaqueous electrolyte, and a cation exchange resin layer which is disposed between the positive electrode and the negative electrode and has a first surface having a roughness factor of 3 or more.
A method for producing a nonaqueous electrolyte secondary battery includes a sulfur-containing positive electrode, a negative electrode, and a cation exchange resin layer which is interposed between the positive electrode and the negative electrode and has a first surface having a roughness factor of 3 or more.
The method includes injecting a lithium polysulfide-containing positive electrode electrolyte between the positive electrode and the cation exchange resin layer, and injecting a negative electrode electrolyte between the negative electrode and the cation exchange resin layer, the negative electrode electrolyte having a lithium polysulfide concentration lower than that of the positive electrode electrolyte.

公开(公告)号：US20180287120A1

公开(公告)日：2018-10-04

申请号：US15766677

申请日：2016-09-30

Applicant: GS Yuasa International Ltd.

Inventor： Kaname NAKAJIMA ,  Heisuke NISHIKAWA ,  Shuji HITOMI

IPC: H01M2/16 ,  H01M10/0525 ,  H01M4/58 ,  H01M10/0568 ,  H01M10/058

Abstract: One aspect of the present invention provides a nonaqueous electrolyte secondary battery including a sulfur-containing positive electrode, a negative electrode, a cation exchange resin layer interposed between the positive electrode and the negative electrode, a positive electrode electrolyte, and a negative electrode electrolyte. The positive electrode electrolyte contains lithium polysulfide, and a sulfur equivalent concentration of the positive electrode electrolyte is higher than the sulfur equivalent concentration of the negative electrode electrolyte. Another aspect of the present invention provides a nonaqueous electrolyte secondary battery including a sulfur-containing positive electrode, a negative electrode, a cation exchange resin layer interposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. At least one of the positive electrode and the negative electrode includes a cation exchange resin, and a concentration of an anion contained in the nonaqueous electrolyte is 0.7 mol/l or less.