公开(公告)号：US12107208B2

公开(公告)日：2024-10-01

申请号：US17517347

申请日：2021-11-02

Applicant: GS Yuasa International Ltd.

Inventor： Kaname Nakajima ,  Heisuke Nishikawa ,  Shuji Hitomi

IPC: H01M10/0568 ,  H01M4/58 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0561 ,  H01M10/0567 ,  H01M10/058 ,  H01M50/46 ,  H01M50/489 ,  H01M4/02 ,  H01M50/417

CPC classification number: H01M10/045 ,  H01M4/58 ,  H01M4/5815 ,  H01M10/049 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0561 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/058 ,  H01M50/46 ,  H01M50/489 ,  H01M2004/028 ,  H01M50/417 ,  H01M2300/0017 ,  H01M2300/0037 ,  Y02E60/10 ,  Y02T10/70

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：US11196078B2

公开(公告)日：2021-12-07

申请号：US15766866

申请日：2016-09-30

Applicant: GS Yuasa International Ltd.

Inventor： Kaname Nakajima ,  Heisuke Nishikawa ,  Shuji Hitomi

IPC: H01M50/46 ,  H01M10/0561 ,  H01M10/04 ,  H01M10/0568 ,  H01M10/058 ,  H01M10/0567 ,  H01M4/58 ,  H01M10/052 ,  H01M50/409 ,  H01M50/411 ,  H01M10/0525 ,  H01M4/02

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：US11772511B2

公开(公告)日：2023-10-03

申请号：US16343189

申请日：2017-10-19

Applicant: GS Yuasa International Ltd.

Inventor： Shuji Hitomi ,  Yuya Asada

IPC: H01M10/44 ,  H01M4/46 ,  H02J7/00 ,  B60L58/13 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/48 ,  H01M4/131 ,  H01M4/134 ,  H01M10/48 ,  H01M4/38 ,  H01M10/05 ,  H01M4/36 ,  B60L50/64

CPC classification number: B60L58/13 ,  H01M4/131 ,  H01M4/134 ,  H01M4/38 ,  H01M4/46 ,  H01M4/48 ,  H01M4/587 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00 ,  B60L50/64 ,  H01M4/36 ,  H02J7/00306

Abstract: Provided are a vehicle-use energy storage apparatus, a vehicle-use discharge system, a discharge control method, and a vehicle-use energy storage device each capable of ensuring a sufficient amount of electricity as an amount of electricity used during a normal use time while ensuring an amount of electricity which is reserved as spare electricity, and possessing a sufficient charge-discharge cycle. According to an aspect of the present invention, there is provided a vehicle-use energy storage apparatus including an energy storage device having a negative electrode including a negative active material which contains: a first active material made of a carbon material; and a second active material having a higher oxidation potential than the carbon material and having a higher capacity per volume than the carbon material. In performing discharging of the energy storage device, a main discharge reaction occurs in the first active material during a normal time, and the main discharge reaction occurs in the second active material during an emergency time.

公开(公告)号：US11579205B2

公开(公告)日：2023-02-14

申请号：US17191162

申请日：2021-03-03

Applicant: GS Yuasa International Ltd.

Inventor： Yosuke Okabe ,  Shota Yamauchi ,  Shuji Hitomi ,  Shigeki Yamate

IPC: G01R31/392 ,  G01R31/382 ,  G01R31/374 ,  G01R31/389

Abstract: Provided is an estimation device including: an acquisition unit that acquires measurement data on an energy storage device; an estimation unit that estimates the amount of deterioration for each deterioration mechanism of the energy storage device based on the acquired measurement data; and an output unit that outputs information based on an estimation result of the estimation unit.

公开(公告)号：US10892513B2

公开(公告)日：2021-01-12

申请号：US15766677

申请日：2016-09-30

Applicant: GS Yuasa International Ltd.

Inventor： Kaname Nakajima ,  Heisuke Nishikawa ,  Shuji Hitomi

IPC: H01M10/04 ,  H01M2/16 ,  H01M4/58 ,  H01M10/0568 ,  H01M10/058 ,  H01M10/0567 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0561 ,  H01M4/02

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.