公开(公告)号：US20210384555A1

公开(公告)日：2021-12-09

申请号：US17410520

申请日：2021-08-24

Applicant: GS Yuasa International Ltd.

Inventor： Tetsuhiro KOBAYASHI ,  Yudai KAWASOE ,  Kenta NAGAMINE

IPC: H01M10/0567 ,  C07D239/26 ,  C07D239/38 ,  C07D239/52 ,  C07D239/54 ,  C07D251/24 ,  C07D251/30 ,  C07D251/38 ,  C07D251/46 ,  H01G11/06 ,  H01G11/60 ,  H01G11/62 ,  H01G11/64 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

Abstract: Provided are a nonaqueous electrolyte capable of providing a nonaqueous electrolyte energy storage device with reduced direct current resistance and an increased capacity retention ratio after charge-discharge cycles, a nonaqueous electrolyte energy storage device including such a nonaqueous electrolyte, and a method for producing such a nonaqueous electrolyte energy storage device. One mode of the present invention is a nonaqueous electrolyte for an energy storage device, containing an additive represented by the following Formula (1) or Formula (2). In Formula (1), R1 to R4 are each independently a hydrogen atom or a group represented by —NRa2, —ORa, —SRa, etc., with the proviso that at least one of R1 to R4 is a group represented by —ORa, —SRa, —COORa, —CORa, —SO2Ra, or —SO3Ra. In Formula (2), R5 to R7 are each independently a hydrogen atom or a group represented by —NRb2, —ORb, or —SRb, with the proviso that at least one of R5 to R7 is a group represented by —SRb.

公开(公告)号：US20220329080A1

公开(公告)日：2022-10-13

申请号：US17634165

申请日：2020-06-18

Applicant: GS Yuasa International Ltd.

Inventor： Tetsuhiro KOBAYASHI ,  Tetsuya MURAI

IPC: H02J7/00 ,  H02J7/02 ,  H01M10/0525 ,  H01M10/48 ,  H01M10/44 ,  H01M10/46 ,  H01M50/583 ,  H01M50/209 ,  H01M10/42 ,  B60L58/10 ,  B60L53/62

Abstract: Disclosed is an energy storage apparatus 2 including a battery cell 16 in which a positive electrode P and a negative electrode N are immersed in a nonaqueous electrolyte solution 18 in a state of being partitioned by a separator 20 and a BMU 46, in which the BMU 46 executes detection processing of detecting a state in which a voltage of the battery cell 16 does not substantially change, and discharge processing of discharging the battery cell 16 in response to detection of the state in the detection processing.