Title:
POLYIMIDE-BASED BINDER FOR ELECTRICITY STORAGE DEVICES, ELECTRODE MIXTURE PASTE, NEGATIVE ELECTRODE ACTIVE MATERIAL LAYER, NEGATIVE ELECTRODE SHEET FOR ELECTRICITY STORAGE DEVICES, AND ELECTRICITY STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/196805
Kind Code:
A1
Abstract:
The present invention discloses a polyimide-based binder for electricity storage devices, which has a repeated breaking energy retention ratio of 70% or more. By using this binder, the characteristics of an electricity storage device, which has an increased capacity, are able to be improved.
Inventors:
NAKAYAMA TAKESHIGE (JP)
NARITA KAZUTAKA (JP)
NARITA KAZUTAKA (JP)
Application Number:
PCT/JP2020/013886
Publication Date:
October 01, 2020
Filing Date:
March 27, 2020
Export Citation:
Assignee:
UBE INDUSTRIES (JP)
International Classes:
H01M4/62; C08G73/10; C08L79/08
Domestic Patent References:
| WO2013035806A1 | 2013-03-14 | |||
| WO2018174299A1 | 2018-09-27 | |||
| WO2011040308A1 | 2011-04-07 | |||
| WO2004004031A1 | 2004-01-08 |
Foreign References:
| JP2012129068A | 2012-07-05 | |||
| JP2013069681A | 2013-04-18 | |||
| JP2011076900A | 2011-04-14 | |||
| CN107602855A | 2018-01-19 | |||
| JP2004235057A | 2004-08-19 | |||
| JP2003203637A | 2003-07-18 | |||
| JP2004288520A | 2004-10-14 | |||
| JP2004022433A | 2004-01-22 |
Other References:
IMAI, YOSHIO: "Structure-Property Relationship in Polyimides", JOURNAL OF THE JAPAN INSTITUTE OF ELECTRONICS PACKAGING, vol. 4, no. 7, 2001, pages 640 - 646, XP055702378
YASUO TAKANO, PROCEEDINGS OF THE 48TH BATTERY SYMPOSIUM IN JAPAN, vol. 2B23, 2007, pages 238
YASUO TAKANO, PROCEEDINGS OF THE 48TH BATTERY SYMPOSIUM IN JAPAN, vol. 2B23, 2007, pages 238
Attorney, Agent or Firm:
ITO Katsuhiro (JP)
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