Title:
二次電池電極用水系バインダー組成物、二次電池電極用スラリー、バインダー、二次電池電極、および二次電池
Document Type and Number:
Japanese Patent JP7323003
Kind Code:
B2
Abstract:
The present invention provides a secondary battery electrode binder that demonstrates excellent performance in regard to active materials binding to each other or to a collector in an aqueous dispersion system, and that has electrolytic solution resistance even when the electrolytic solution composition has a large content of chain carbonate. It is possible to improve cycle characteristics of the charge and discharge at high temperature of this secondary battery. The present invention provides an aqueous binder composition for a secondary battery electrode containing a silane coupling agent without ethylenically unsaturated bonds, a resin which is a polymer of at least one kind of ethylenically unsaturated monomers, and at least one kind of solvent selected from the group consisting of water and a hydrophilic solvent. The amount of silane coupling agent is from 0.5 to 9 parts by mass based on 100 parts by mass of ethylenically unsaturated monomer. The pH of the composition is 2.5 to 8.0.
Inventors:
花▲崎▼ 充
Tomonori Kurata
Junya Uchiyashiki
Yasuhiro Nakagawa
Tomonori Kurata
Junya Uchiyashiki
Yasuhiro Nakagawa
Application Number:
JP2022070960A
Publication Date:
August 08, 2023
Filing Date:
April 22, 2022
Export Citation:
Assignee:
Resonac Co., Ltd.
International Classes:
H01M4/62; H01M4/13; H01M4/139
Domestic Patent References:
| JP2014179321A | ||||
| JP2001093583A | ||||
| JP2007109549A |
Foreign References:
| US20140239239 | ||||
| WO2013069280A1 |
Attorney, Agent or Firm:
Shu Oikawa
Norihiko Ara
Tomoo Katsumata
Ryuichiro Majima
Norihiko Ara
Tomoo Katsumata
Ryuichiro Majima
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