Functional electrolyte for lithium-ion batteries
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-006/16
C07C-043/205
H01M-010/052
H01M-010/0569
H01M-010/0567
출원번호
US-0787433
(2013-03-06)
등록번호
US-9005822
(2015-04-14)
발명자
/ 주소
Zhang, Lu
Zhang, Zhengcheng
Amine, Khalil
출원인 / 주소
UChicago Argonne, LLC
대리인 / 주소
Foley & Lardner LLP
인용정보
피인용 횟수 :
1인용 특허 :
25
초록▼
Functional electrolyte solvents include compounds having at least one aromatic ring with 2, 3, 4 or 5 substituents, at least one of which is a substituted or unsubstituted methoxy group, at least one of which is a tert-butyl group and at least one of which is a substituted or unsubstituted polyether
Functional electrolyte solvents include compounds having at least one aromatic ring with 2, 3, 4 or 5 substituents, at least one of which is a substituted or unsubstituted methoxy group, at least one of which is a tert-butyl group and at least one of which is a substituted or unsubstituted polyether or poly(ethylene oxide) (PEO) group bonded through oxygen to the aromatic ring, are provided.
대표청구항▼
1. A functional electrolyte solvent comprising a compound of formula wherein:R2 is H, F, Cl, Br, I, alkyl, or a polyether group; andR3 is H, F, Cl, Br, I, alkyl, or a polyether group. 2. The functional electrolyte solvent of claim 1, wherein the compound has the structure 3. The functional electrol
1. A functional electrolyte solvent comprising a compound of formula wherein:R2 is H, F, Cl, Br, I, alkyl, or a polyether group; andR3 is H, F, Cl, Br, I, alkyl, or a polyether group. 2. The functional electrolyte solvent of claim 1, wherein the compound has the structure 3. The functional electrolyte solvent of claim 1, wherein the compound has the structure: 4. The functional electrolyte solvent of claim 1, wherein the compound is: 5. The functional electrolyte solvent of claim 1, wherein the compound is: 6. An electrolyte comprising: the functional electrolyte solvent of claim 1; andan alkali metal salt. 7. The electrolyte of claim 6, wherein the functional electrolyte solvent is a redox active material and has a redox potential of 3 to 5 V. 8. The electrolyte if claim 6, wherein the functional electrolyte solvent is 1-methoxy-4-(2-methoxyethoxy)-2,5-di-tert-butyl-benzene, 1-methoxy-4-[2-(2-methoxyethoxyl)ethoxy]-2,5-di-tert-butyl-benzene, or a mixture thereof. 9. The electrolyte of claim 6, wherein the concentration of the functional electrolyte solvent in the electrolyte is from 0.0005 wt % and 60 wt %. 10. The electrolyte of claim 6, wherein the alkali metal salt is a lithium salt. 11. The electrolyte of claim 6, wherein the alkali metal salt is Li[(C2O4)2B], Li(C2O4)BF2, LiClO4, LiBF4, LiAsF6, LiPF6, LiCF3SO3, Li(CF3SO2)2N, Li(CF3SO2)3C, LiN(SO2C2F5)2, lithium alkyl fluorophosphates, or a mixture of any two or more thereof. 12. The electrolyte of claim 6 further comprising a polar aprotic solvent. 13. The electrolyte of claim 12, wherein the polar aprotic solvent is selected from ethylene carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, dimethyl ether, gamma butyrolactone, or a mixture of any two or more thereof. 14. The electrolyte of claim 6, wherein the alkali metal salt is other than Li[(C2O4)2B], Li(C2O4)BF2, and the electrolyte further comprises about 0.001 wt % to about 8 wt % of an electrode stabilizing additive that is Li[(C2O4)2B], Li(C2O4)BF2, or a mixture thereof. 15. The electrolyte of claim 6 further comprising an electrode stabilizing additive that is a substituted or unsubstituted spirocyclic hydrocarbon containing at least one oxygen atom and at least one alkenyl or alkynyl group. 16. An electrochemical device comprising: a cathodean anode; andan electrolyte of claim 6. 17. The electrochemical device of claim 16, wherein the device is a lithium secondary battery; the cathode is a lithium metal oxide cathode; the anode is a carbon or lithium metal anode; and the anode and cathode are separated from each other by a porous separator. 18. An electrolyte comprising: an alkali metal salt; andat least one of 1-methoxy-4-(2-methoxyethoxy)-2,5-di-tert-butyl-benzene, 1-methoxy-4-[2-(2-methoxyethoxyl)ethoxy]-2,5-di-tert-butyl-benzene, 1-methoxy-4-[2-[2-(2-ethoxyethoxyl)ethoxy]ethoxy]-2,5-di-tert-butyl-benzene, 1-methoxy-4-[2-[2-[2-(2-methoxyethoxyl)ethoxy]ethoxy]ethoxy]-2,5-di-tert-butyl-benzene, 1-methoxy-4-[2-[2-[2-[2-(2-methoxyethoxyl)ethoxy]ethoxy]ethoxy]ethoxy]-2,5-di-tert-butyl-benzene, and 1-methoxy-4-[2-[2-[2-[2-[2-(2-methoxyethoxyl)ethoxy]ethoxy]ethoxy]ethoxy]ethoxyl-2,5-di-tert-butyl-benzene.
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이 특허에 인용된 특허 (25)
Turner, Robert L.; Fredericksen, Brian D.; Krause, Larry J.; Dahn, Jeffrey R.; Larcher, Dominique C.; Courtney, Ian A.; Mao, Ou, Amorphous electrode compositions.
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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.
Robert L. Turner ; Donald J. McClure ; Larry J. Krause ; Mary M. Buckett ; Jeffery R. Dahn CA; Ou Mao CA, Electrode compositions with high coulombic efficiencies.
Richardson Thomas J. ; Ross Philip N., Solid polymer electrolyte electrochemical storage cell containing a redox shuttle additive for overcharge protection.
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