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:
- 1493294
- Patent Number(s):
- 10170765
- Application Number:
- 14/863,486
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01B - CABLES
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: 2015 Sep 24
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE
Citation Formats
Liu, Gao, Battaglia, Vincent S., and Park, Sang-Jae. Electronically conductive polymer binder for lithium-ion battery electrode. United States: N. p., 2019.
Web.
Liu, Gao, Battaglia, Vincent S., & Park, Sang-Jae. Electronically conductive polymer binder for lithium-ion battery electrode. United States.
Liu, Gao, Battaglia, Vincent S., and Park, Sang-Jae. Tue .
"Electronically conductive polymer binder for lithium-ion battery electrode". United States. https://www.osti.gov/servlets/purl/1493294.
@article{osti_1493294,
title = {Electronically conductive polymer binder for lithium-ion battery electrode},
author = {Liu, Gao and Battaglia, Vincent S. and Park, Sang-Jae},
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 = {2019},
month = {1}
}
Works referenced in this record:
Noncovalent functionalization of multi-walled carbon nanotubes by pyrene containing polymers
journal, January 2003
- Petrov, Petar; Stassin, Fabrice; Pagnoulle, Christophe
- Chem. Commun., Issue 23