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Electrolytes and electrochemical devices

Patent ·
OSTI ID:2542061
;
Disclosed herein are electrolytes and electrochemical devices. The electrochemical devices comprise cathodes that include nickel-rich layered lithium transition metal oxides, lithium-rich layered transition-metal oxides, lithium manganese-based spinel oxides, lithium polyanion-based compounds, and combinations thereof. The electrolytes include a lithium imide salt, an aprotic acyclic carbonate solvent, and an additive, wherein the additive comprises a metal salt, an aprotic solvent, or a combination thereof. The electrolyte can be stable at a voltage of 4.3 V or above vs. Li/Li+.
Research Organization:
Univ. of Texas, Austin, TX (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0007762
Assignee:
Board of Regents, the University of Texas System (Austin, TX)
Patent Number(s):
11,961,965
Application Number:
16/607,820
OSTI ID:
2542061
Country of Publication:
United States
Language:
English

References (5)

Comparative study on lithium borates as corrosion inhibitors of aluminum current collector in lithium bis(fluorosulfonyl)imide electrolytes journal November 2015
Electrolytes and Interphases in Li-Ion Batteries and Beyond journal October 2014
Superconcentrated electrolytes for a high-voltage lithium-ion battery journal June 2016
A Guide to Ethylene Carbonate-Free Electrolyte Making for Li-Ion Cells journal November 2016
Electrolyte System for High Voltage Li-Ion Cells journal January 2016

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