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Title: Block copolymer with simultaneous electric and ionic conduction for use in lithium ion batteries

Abstract

Redox reactions that occur at the electrodes of batteries require transport of both ions and electrons to the active centers. Reported is the synthesis of a block copolymer that exhibits simultaneous electronic and ionic conduction. A combination of Grignard metathesis polymerization and click reaction was used successively to synthesize the block copolymer containing regioregular poly(3-hexylthiophene) (P3HT) and poly(ethylene oxide) (PEO) segments. The P3HT-PEO/LiTFSI mixture was then used to make a lithium battery cathode with LiFePO.sub.4 as the only other component. All-solid lithium batteries of the cathode described above, a solid electrolyte and a lithium foil as the anode showed capacities within experimental error of the theoretical capacity of the battery. The ability of P3HT-PEO to serve all of the transport and binding functions required in a lithium battery electrode is thus demonstrated.

Inventors:
; ; ;
Publication Date:
Research Org.:
LBNL (Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1097261
Patent Number(s):
8,552,144
Application Number:
13/427,640
Assignee:
The Regents of the University of California (Oakland, CA) LBNL
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Javier, Anna Esmeralda K, Balsara, Nitash Pervez, Patel, Shrayesh Naran, and Hallinan, Jr., Daniel T. Block copolymer with simultaneous electric and ionic conduction for use in lithium ion batteries. United States: N. p., 2013. Web.
Javier, Anna Esmeralda K, Balsara, Nitash Pervez, Patel, Shrayesh Naran, & Hallinan, Jr., Daniel T. Block copolymer with simultaneous electric and ionic conduction for use in lithium ion batteries. United States.
Javier, Anna Esmeralda K, Balsara, Nitash Pervez, Patel, Shrayesh Naran, and Hallinan, Jr., Daniel T. Tue . "Block copolymer with simultaneous electric and ionic conduction for use in lithium ion batteries". United States. https://www.osti.gov/servlets/purl/1097261.
@article{osti_1097261,
title = {Block copolymer with simultaneous electric and ionic conduction for use in lithium ion batteries},
author = {Javier, Anna Esmeralda K and Balsara, Nitash Pervez and Patel, Shrayesh Naran and Hallinan, Jr., Daniel T},
abstractNote = {Redox reactions that occur at the electrodes of batteries require transport of both ions and electrons to the active centers. Reported is the synthesis of a block copolymer that exhibits simultaneous electronic and ionic conduction. A combination of Grignard metathesis polymerization and click reaction was used successively to synthesize the block copolymer containing regioregular poly(3-hexylthiophene) (P3HT) and poly(ethylene oxide) (PEO) segments. The P3HT-PEO/LiTFSI mixture was then used to make a lithium battery cathode with LiFePO.sub.4 as the only other component. All-solid lithium batteries of the cathode described above, a solid electrolyte and a lithium foil as the anode showed capacities within experimental error of the theoretical capacity of the battery. The ability of P3HT-PEO to serve all of the transport and binding functions required in a lithium battery electrode is thus demonstrated.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {10}
}

Patent:

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