Electronically conductive polymer binder for lithium-ion battery electrode
Abstract
A family of carboxylic acid groups containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. Triethyleneoxide side chains provide improved adhesion to materials such as, graphite, silicon, silicon alloy, tin, tin alloy. 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 Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1190871
- Patent Number(s):
- 9077039
- Application Number:
- 13/615,402
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- AC02-05CH11231
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2012 Sep 13
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 36 MATERIALS SCIENCE
Citation Formats
Liu, Gao, Xun, Shidi, Battaglia, Vincent S., Zheng, Honghe, and Wu, Mingyan. Electronically conductive polymer binder for lithium-ion battery electrode. United States: N. p., 2015.
Web.
Liu, Gao, Xun, Shidi, Battaglia, Vincent S., Zheng, Honghe, & Wu, Mingyan. Electronically conductive polymer binder for lithium-ion battery electrode. United States.
Liu, Gao, Xun, Shidi, Battaglia, Vincent S., Zheng, Honghe, and Wu, Mingyan. Tue .
"Electronically conductive polymer binder for lithium-ion battery electrode". United States. https://www.osti.gov/servlets/purl/1190871.
@article{osti_1190871,
title = {Electronically conductive polymer binder for lithium-ion battery electrode},
author = {Liu, Gao and Xun, Shidi and Battaglia, Vincent S. and Zheng, Honghe and Wu, Mingyan},
abstractNote = {A family of carboxylic acid groups containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. Triethyleneoxide side chains provide improved adhesion to materials such as, graphite, silicon, silicon alloy, tin, tin alloy. 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 = {2015},
month = {7}
}