Title:
IMPROVED SEPARATOR FOR HIGH VOLTAGE RECHARGEABLE LITHIUM BATTERY, AND RELATED METHOD
Document Type and Number:
Japanese Patent JP2021044253
Kind Code:
A
Abstract:
To provide a separator for a high-energy and/or high-voltage lithium-ion battery that are stable at a high voltage up to at least 5 volts such as a new or improved single-layer, multi-layer or multi superposition-layer microporous separator membrane.SOLUTION: In a microporous battery separator for a rechargeable lithium battery, a polyolefin selected from a group consisting of high density polyethylene, isotactic polypropylene, and ultra high molecular weight MW polyethylene, and a new polymer selected from poly (4-methylpentene), polyphenylene sulfide, polybenzimidazole, polychlorotrifluoroethylene, polyamide-66, polyethylene vinyl alcohol, and polyoxymethylene are blended, and a microporous film containing a ceramic material is used.SELECTED DRAWING: Figure 2
Inventors:
SHI LI
GLEN C WENSLEY
RONNIE E SMITH
KWANTAI CHO
EDWARD KRUGER
GLEN C WENSLEY
RONNIE E SMITH
KWANTAI CHO
EDWARD KRUGER
Application Number:
JP2020196577A
Publication Date:
March 18, 2021
Filing Date:
November 27, 2020
Export Citation:
Assignee:
CELGARD LLC
International Classes:
H01M50/409; H01M50/451
Domestic Patent References:
| JP2011224987A | 2011-11-10 | |||
| JP2012530803A | 2012-12-06 | |||
| JP2005322644A | 2005-11-17 | |||
| JPH0351314A | 1991-03-05 |
Foreign References:
| WO2014034448A1 | 2014-03-06 |
Attorney, Agent or Firm:
Ryoichi Takaoka
Nao Oda
Akiyo Iwahori
Kaoru Takahashi
Nao Oda
Akiyo Iwahori
Kaoru Takahashi