DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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:
1357477
Patent Number(s):
9653734
Application Number:
14/458,977
Assignee:
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
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: 2014 Aug 13
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 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., 2017. 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/1357477.
@article{osti_1357477,
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 = {2017},
month = {5}
}

Works referenced in this record:

Non-aqueous electrolyte secondary battery and method of production of the same
patent, July 2002


Electroactive fluorene copolymers and devices made with such polymers
patent, May 2007


Electronically conductive polymer binder for lithium-ion battery electrode
patent, October 2014


Electronically conductive polymer binder for lithium-ion battery electrode
patent, July 2015


Si composite electrode with Li metal doping for advanced lithium-ion battery
patent, December 2015


Composite material for anode of lithium secondary battery, and lithium secondary battery
patent-application, July 2002


Lithium metal dispersion in secondary battery anodes
patent-application, August 2002


Polymer materials for use in an electrode
patent-application, March 2003


Complex fluorene-containing compounds
patent-application, July 2004


Methods and devices utilizing soluble conjugated polymers
patent-application, March 2006


Electrode structure for lithium secondary battery and secondary battery having such electrode structure
patent-application, June 2006


Anode and lithium battery including the anode
patent-application, March 2007


Anode for Lithium Ion Cell
patent-application, November 2008


Secondary Battery
patent-application, April 2010


Electronically Conductive Polymer Binder for Lithium-Ion Battery Electrode
patent-application, May 2012


Organic Active Materials for Batteries
patent-application, July 2013


Electronically Conductive Polymer Binder for Lithium-Ion Battery Electrode
patent-application, September 2013


Electronically Conductive Polymer Binder for Lithium-Ion Battery Electrode
patent-application, October 2013


Electronically Conductive Polymer Binder For Lithium-Ion Battery Electrode
patent-application, February 2015


Electronically Conductive Polymer Binder for Lithium-Ion Battery Electrode
patent-application, October 2015


Characterization of Mechanically Attrited Si/SiOx Nanoparticles and Their Self-Assembled Composite Films
journal, March 2002


The Influence of UV Irradiation on Ketonic Defect Emission in Fluorene-Based Copolymers
journal, September 2008


An effect of side chain length on the solution structure of poly(9,9-dialkylfluorene)s in toluene
journal, April 2008