公开(公告)号：US20190198926A1

公开(公告)日：2019-06-27

申请号：US16322199

申请日：2016-09-02

申请人： KURITA WATER INDUSTRIES LTD.

发明人： Jun KANEKO ,  Mitsuru NOZUE

IPC分类号： H01M10/0567 ,  H01M10/0585 ,  H01M10/0525

CPC分类号： H01M10/0567 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2300/0025

摘要： As an electrolyte for a lithium ion battery, there is used one in which an inorganic adsorbent is dispersed in a non-aqueous electrolyte. The non-aqueous electrolyte is one having lithium ion conductivity, preferably a mixed solution of a cyclic carbonate such as propylene carbonate (PC) and ethylene carbonate (EC), and a chain carbonate such as dimethyl carbonate (DMC), ethyl methyl carbonate (EMC), diethyl carbonate (DEC) and the like. This solution may optionally be a solution in which a lithium salt, such as lithium hexafluorophosphate or the like, is dissolved as an electrolyte. The inorganic adsorbent to be dispersed in the non-aqueous electrolyte is preferably a Ca-exchanged A-type zeolite or an activated carbon. Such an electrolyte for a lithium ion battery is suitably used for a non-aqueous electrolyte secondary battery such as a lithium ion battery and is capable of highly maintaining the capability of absorbing moisture and gases.

公开(公告)号：US20240250362A1

公开(公告)日：2024-07-25

申请号：US18283337

申请日：2022-03-09

申请人： KURITA WATER INDUSTRIES LTD.

发明人： Minoru YAGI ,  Mitsuru NOZUE ,  Jun KANEKO

IPC分类号： H01M50/227 ,  H01G11/56 ,  H01G11/78 ,  H01M10/0525 ,  H01M50/207 ,  H01M50/383

CPC分类号： H01M50/227 ,  H01G11/56 ,  H01G11/78 ,  H01M10/0525 ,  H01M50/207 ,  H01M50/383

摘要： The power storage device structure according to the present invention includes a power storage device and a casing that encloses the power storage device with a gap therebetween, and has a structure in which a molded body containing an acrylic resin or a molded body containing a copolymer of a monomer used for polymerization of an acrylic resin and another monomer is placed in the gap between the power storage device and the casing. The molded body is preferably in the form of a film, sheet, or plate. With such a power storage device structure, it is possible to reduce the risk of ignition in the event of an abnormality such as damage to a power storage device, particularly to a power storage device stack in which multiple power storage devices are stacked, or overcharge.

公开(公告)号：US20200350643A1

公开(公告)日：2020-11-05

申请号：US16332943

申请日：2018-03-29

申请人： KURITA WATER INDUSTRIES LTD.

发明人： Jun KANEKO ,  Shingo MIYAMOTO ,  Mitsuru NOZUE

IPC分类号： H01M10/52 ,  H01M10/0525

摘要： A lithium ion battery comprises a positive electrode terminal and a negative electrode terminal, a battery case, and an electrode body housed inside the battery case. The electrode body has a positive electrode current collector and a positive-electrode electrode plate and a negative electrode current collector and a negative-electrode electrode plate, and has a structure in which the positive-electrode electrode plate and the negative-electrode electrode plate are laminated via a separator. A carbon-based porous material in a battery case has a methane gas absorption capacity and preferably has a carbon dioxide gas absorption capacity and has a pore volume of 0.3 mL/g or less, for pores having a pore size of 4.5 Å or more. Such a gas absorber for a lithium ion battery generates no gas from reaction with an electrolytic solution of the lithium ion battery and can suitably absorb methane gas generated at the time of abnormality.

公开(公告)号：US20190252721A1

公开(公告)日：2019-08-15

申请号：US16317152

申请日：2017-07-11

申请人： KURITA WATER INDUSTRIES LTD.

发明人： Mitsuru NOZUE ,  Jun KANEKO

IPC分类号： H01M10/0567 ,  H01M10/0525

CPC分类号： H01M10/0567 ,  H01M4/62 ,  H01M10/0525

摘要： A lithium ion battery includes a positive electrode terminal, a negative electrode terminal, and a battery case, which is an airtight container. An electrode body is housed inside the battery case. The electrode body has a positive electrode current collector, a positive-electrode electrode plate, a negative electrode current collector, and a negative-electrode electrode plated. The positive-electrode electrode plate and the negative-electrode electrode plated are laminated via a separator. A hydrofluoric acid absorber is placed in a gap portion in the battery case. This hydrofluoric acid absorber preferably is one having a moisture removal capability, such as zeolite. A lithium ion battery using such a hydrofluoric acid absorber has excellent hydrofluoric acid absorption properties, and in particular can suppress the production per se of hydrofluoric acid.