Title:
QUINARY ELECTROLYTES FOR HIGH POWER LITHIUM ION BATTERIES
Document Type and Number:
WIPO Patent Application WO/2017/120884
Kind Code:
A1
Abstract:
High power lithium-ion batteries are disclosed. Such batteries may be used, for example, as the sole electric starter motor power sources for automotive vehicles powered by multi-cylinder engines with reciprocating pistons when the vehicles are to be operated in an engine start-stop mode to conserve fuel. Such batteries typically utilize non-aqueous solutions of lithium salts, such as LiPF 6 or LiBF 4, in combination with durable lithium intercalating electrodes. In accordance with this disclosure the performance of the battery's electrolyte and cells over a wide ambient temperature range is enhanced by a mixture of five miscible solvents formed of lower alkyl moieties. The quinary solvent mixture comprises two cyclic alkyl carbonates, two linear alkyl carbonates, and with a major portion of an alkyl ester.
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Inventors:
DENG SHAWN (CN)
Application Number:
PCT/CN2016/071008
Publication Date:
July 20, 2017
Filing Date:
January 15, 2016
Export Citation:
Assignee:
GM GLOBAL TECH OPERATIONS LLC (US)
DENG SHAWN (CN)
DENG SHAWN (CN)
International Classes:
H01M10/0569; B60K6/28
Foreign References:
| CN1790800A | 2006-06-21 | |||
| CN105186039A | 2015-12-23 | |||
| CN102463885A | 2012-05-23 | |||
| US5484669A | 1996-01-16 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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