Small domain-size multiblock copolymer electrolytes
New block polymer electrolytes have been developed which have higher conductivities than previously reported for other block copolymer electrolytes. The new materials are constructed of multiple blocks (>5) of relatively low domain size. The small domain size provides greater protection against formation of dendrites during cycling against lithium in an electrochemical cell, while the large total molecular weight insures poor long range alignment, which leads to higher conductivity. In addition to higher conductivity, these materials can be more easily synthesized because of reduced requirements on the purity level of the reagents.
- Issue Date:
- OSTI Identifier:
- 1325535
- Assignee:
- Seeo, Inc. (Hayward, CA) NETL
- Patent Number(s):
- 9,450,272
- Application Number:
- 13/862,442
- Contract Number:
- OE0000223
- Resource Relation:
- Patent File Date: 2013 Apr 14
- Research Org:
- Seeo, Inc., Hayward, CA (United States)
- Sponsoring Org:
- USDOE
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE
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Other works cited in this record:
Performance limitations of polymer electrolytes based on ethylene oxide polymersjournal, August 2000
- Buriez, Olivier; Han, Yong Bong; Hou, Jun
- Journal of Power Sources, Vol. 89, Issue 2, p. 149-155
Morphology of PI–PEO block copolymers for lithium batteries
journal, August 2006
- Xue, Chenchen; Meador, Mary Ann B.; Zhu, Lei
- Polymer, Vol. 47, Issue 17, p. 6149-6155
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