Invention Grant
- Patent Title: Functionalized choline chloride ionic liquid, preparation method thereof and use in electrochemical energy storage device
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Application No.: US14648859Application Date: 2013-09-04
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Publication No.: US09728806B2Publication Date: 2017-08-08
- Inventor: Lingzhi Zhang , Tianqiao Yong
- Applicant: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES , Lingzhi Zhang , Tianqiao Yong
- Applicant Address: CN Tianhe Guangzhou, Guangdong
- Assignee: Guangzhou Institute of Energy Conversion, Chinese Academy Of Sciences
- Current Assignee: Guangzhou Institute of Energy Conversion, Chinese Academy Of Sciences
- Current Assignee Address: CN Tianhe Guangzhou, Guangdong
- Agency: Pearne & Gordon LLP
- Priority: CN201210585742 20121228
- International Application: PCT/CN2013/082892 WO 20130904
- International Announcement: WO2014/101460 WO 20140703
- Main IPC: C07C253/30
- IPC: C07C253/30 ; C07F7/18 ; H01M10/0525 ; C07C213/06 ; C07C215/40 ; C07C217/08 ; H01G11/62 ; H01M10/0567 ; C07C255/16 ; C07C311/00 ; C07F5/02 ; C07C311/48 ; C07F7/10 ; H01G11/64 ; H01G11/04 ; H01M10/0569
Abstract:
The present invention discloses a process for preparing a functionalized choline chloride ionic liquid as defined in formula (I), and thereof use in an electrochemical energy storage device, as an electrolyte solution or an additive for a lithium ion battery and a supercapacitor. The ionic liquid electrolyte material has better biocompatibility, flame retardance, high ionic conductivity, low viscosity, and wide electrochemical window. wherein R1 is selected from the group consisting of: (CH2═CH—(CH2)n)—, CN(CH2)n—, or R23Si—; R2 is selected from CH3—(CH2)m—, n is an integer selected from 1 to 3, m is an integer selected from 0 to 2; or one of R2 is (CH3)3Si—O—. Anion A in Formula I is selected from the group consisting of: Cl−, Br−, I−, BF4−, NO3−, SO42−, CF3COO−, CF3SO3−, (CF3SO2)2N−, PF6−, BF2C2O4−, or B(C2O4)2−.
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