Electronically conductive polymer binder for lithium-ion battery electrode
Abstract
A family of carboxylic acid group containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1160212
- Patent Number(s):
- 8852461
- Application Number:
- 13/294,885
- Assignee:
- The Regents of The University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- DOE Contract Number:
- AC02-05CH11231
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2011 Nov 11
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE
Citation Formats
Liu, Gao, Xun, Shidi, Battaglia, Vincent S, and Zheng, Honghe. Electronically conductive polymer binder for lithium-ion battery electrode. United States: N. p., 2014.
Web.
Liu, Gao, Xun, Shidi, Battaglia, Vincent S, & Zheng, Honghe. Electronically conductive polymer binder for lithium-ion battery electrode. United States.
Liu, Gao, Xun, Shidi, Battaglia, Vincent S, and Zheng, Honghe. Tue .
"Electronically conductive polymer binder for lithium-ion battery electrode". United States. https://www.osti.gov/servlets/purl/1160212.
@article{osti_1160212,
title = {Electronically conductive polymer binder for lithium-ion battery electrode},
author = {Liu, Gao and Xun, Shidi and Battaglia, Vincent S and Zheng, Honghe},
abstractNote = {A family of carboxylic acid group containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {10}
}
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Works referencing / citing this record:
Electronically conductive polymer binder for lithium-ion battery electrode
patent, October 2014
- Liu, Gao; Xun, Shidi; Battaglia, Vincent S.
- US Patent Document 8,852,461