Redox shuttle additives for lithium-ion batteries
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-010/0525
H01M-010/0567
H01M-010/42
출원번호
US-0239930
(2012-07-20)
등록번호
US-9601806
(2017-03-21)
국제출원번호
PCT/US2012/047692
(2012-07-20)
§371/§102 date
20140423
(20140423)
국제공개번호
WO2013/032593
(2013-03-07)
발명자
/ 주소
Zhang, Lu
Zhang, Zhengcheng
Amine, Khalil
출원인 / 주소
UCHICAGO ARGONNE, LLC
대리인 / 주소
Foley & Lardner LLP
인용정보
피인용 횟수 :
0인용 특허 :
22
초록▼
An electro lye includes a compound of Formula I or IA: where each instance of R1 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl; each instance of R2 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl; each instance of R3 is independently H, alkyl
An electro lye includes a compound of Formula I or IA: where each instance of R1 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl; each instance of R2 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl; each instance of R3 is independently H, alkyl, alkenyl, aryl, or cycloalkyl; each instance of R4 is independently H, halogen, CN, NO2, phosphate, alkyl, alkenyl, aryl, heteroaryl, or cycloalkyl; x is 1, 2, 3, 4, or 5; y is 1 or 2; and z is 0, 1, 2, 3, or 4.
대표청구항▼
1. An electrolyte comprising: an alkali metal salt;a polar aprotic solvent; anda redox shuttle;wherein: the redox shuttle comprises a compound represented by Formula IB: wherein: each instance of R1 is independently H, alkyl, alkoxy, alkenyl, heteroaryl, or cycloalkyl;each instance of R2 is independ
1. An electrolyte comprising: an alkali metal salt;a polar aprotic solvent; anda redox shuttle;wherein: the redox shuttle comprises a compound represented by Formula IB: wherein: each instance of R1 is independently H, alkyl, alkoxy, alkenyl, heteroaryl, or cycloalkyl;each instance of R2 is independently H, alkyl, alkoxy, alkenyl, heteroaryl, or cycloalkyl; andeach instance of R3 is independently H, alkyl, alkenyl, awl, or cycloalkyl; ora combination of any two or more thereof. 2. The electrolyte of claim 1, wherein the redox shuttle has a redox potential of from 4 V to 5 V in the electrolyte. 3. The electrolyte of claim 1, wherein a concentration of the redox shuttle in the electrolyte is from 0.0005 wt % to 50 wt %. 4. The electrolyte of claim 1, wherein the alkali metal salt is a lithium salt. 5. An electrochemical device comprising a cathode, an anode, and the electrolyte of claim 1. 6. A method of preparing an electrolyte comprising: combining an alkali metal salt and redox shuttle in a polar aprotic solvent;wherein: the redox shuttle comprises a compound represented by Formula IB: wherein: each instance of R1 is independently H, alkyl, alkoxy, alkenyl, heteroaryl, or cycloalkyl;each instance of R2 is independently H, alkyl, alkoxy, alkenyl, heteroaryl, or cycloalkyl; andeach instance of R3 is independently H, alkyl, alkenyl, awl, or cycloalkyl; ora combination of any two or more thereof. 7. An electrolyte comprising: an alkali metal salt;a polar aprotic solvent; anda redox shuttle;wherein: the redox shuttle comprises a compound represented by Formula IIB: wherein: each instance of R1 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl;each instance of R2 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl; andeach instance of R3 is independently H, alkyl, alkenyl, aryl, or cycloalkyl. 8. The electrolyte of claim 7, wherein the redox shuttle has a redox potential of from 4 V to 5 V in the electrolyte. 9. The electrolyte of claim 7, wherein the redox shuttle is represented by Formula II-1, II-2, II-3, II-4, II-5, or II-6: 10. The electrolyte of claim 7, wherein a concentration of the redox shuttle in the electrolyte is from 0.0005 wt % to 50 wt %. 11. The electrolyte of claim 7, wherein the alkali metal salt is a lithium salt. 12. An electrochemical device comprising a cathode, an anode, and an electrolyte, the electrolyte comprising: an alkali metal salt;a polar aprotic solvent; anda redox shuttle;wherein: the redox shuttle comprises a compound represented by Formula IIB: wherein: each instance of R1 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl;each instance of R2 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl; andeach instance of R3 is independently H, alkyl, alkenyl, aryl, or cycloalkyl.
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이 특허에 인용된 특허 (22)
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Kerr John B. ; Tian Minmin,JPX, Electrochemical storage cell containing a substituted anisole or di-anisole redox shuttle additive for overcharge protection and suitable for use in liquid organic and solid polymer electrolytes.
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Richardson Thomas J. ; Ross Philip N., Solid polymer electrolyte electrochemical storage cell containing a redox shuttle additive for overcharge protection.
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