Polyfluorinated boron cluster anions for lithium electrolytes
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-002/26
H01M-006/16
H01M-006/04
H01M-010/26
H01M-010/24
출원번호
US-0655476
(2003-09-04)
등록번호
US-7311993
(2007-12-25)
발명자
/ 주소
Ivanov,Sergei Vladimirovich
Casteel, Jr.,William Jack
Pez,Guido Peter
Ulman,Michael
출원인 / 주소
Air Products and Chemicals, Inc.
인용정보
피인용 횟수 :
9인용 특허 :
15
초록▼
The present invention relates to an improvement in lithium secondary batteries comprised of a negative electrode, a positive electrode, a separator, and a lithium-based electrolyte carried in an aprotic solvent and to the electrolyte compositions. The improvement resides in the use of a lithium elec
The present invention relates to an improvement in lithium secondary batteries comprised of a negative electrode, a positive electrode, a separator, and a lithium-based electrolyte carried in an aprotic solvent and to the electrolyte compositions. The improvement resides in the use of a lithium electrolyte of the formula: description="In-line Formulae" end="lead"Li2B12FxZ12-x description="In-line Formulae" end="tail" wherein x=>5 and Z represents H, Cl, and Br. Preferably, when x is less than 12, Z is Cl.
대표청구항▼
The invention claimed is: 1. A lithium secondary battery comprising at least one salt and at least one solvent wherein the salt comprises: a lithium dodecafluorborate salt of the formula: description="In-line Formulae" end="lead"Li2B12FxZ12-x description="In-line Formulae" end="tail" wherein x
The invention claimed is: 1. A lithium secondary battery comprising at least one salt and at least one solvent wherein the salt comprises: a lithium dodecafluorborate salt of the formula: description="In-line Formulae" end="lead"Li2B12FxZ12-x description="In-line Formulae" end="tail" wherein x is greater than or equal to 8 and less than or equal to 12 and Z represents H, Cl, and Br, and wherein the solvent comprises at least one member selected from the group consisting of chloroethylene carbonate, butylene carbonate, dimethyl carbonate, dimethylvinylene carbonate, ethylene carbonate, ethyl methyl carbonate, diethyl carbonate, methyl propyl carbonate, ethyl propyl carbonate, dipropyl carbonate, bis(trifluoroethyl) carbonate, bis(pentafluoropropyl) carbonate, trifluoroethyl methyl carbonate, pentafluoroethyl methyl carbonate, heptafluoropropyl methyl carbonate, perfluorobutyl methyl carbonate, trifluoroethyl ethyl carbonate, pentafluoroethyl ethyl carbonate, propylene carbonate, heptafluoropropyl ethyl carbonate, perfluorobutyl ethyl carbonate, vinylene carbonate, fluorinated oligomers, dimethoxyethane, diglyme, triglyme, dimethylvinylene carbonate, trifluoropropylene carbonate tetraethyleneglycol, dimethyl ether, polyethylene glycols, sulfones, polyethers, polyethylene oxides, polyimides, polyphosphazines, polyacrylonitriles, polysiloxanes, sulfonated polyimides, perfluorinated membranes, divinyl polyethylene glycols, polyethylene glycol-bis-(methyl acrylates), polyethylene glycol-bis(methyl methacrylates), polyether grafted polysiloxanes, aprotic gel polymers, and gamma-butyrolactone. 2. The lithium secondary battery of claim 1 wherein Z is Cl, or Br. 3. The lithium secondary battery of claim 1 wherein the concentration of lithium dodecaborofluorate salt in the lithium electrolyte salt is from 0.05 to 1 molar. 4. The lithium secondary battery of claim 3 wherein Z is Cl or Br. 5. The lithium secondary battery of claim 1 wherein the solvent is selected from the group consisting of ethylene carbonate, dimethyl carbonate, ethyl methyl carbonate, diethyl carbonate, methyl propyl carbonate, methyl trifluoroethyl carbonate, dimethoxyethane, diglyme, and triglyme, propylene carbonate, trifluoropropylene carbonate, chloroethylene carbonate, vinylene carbonate, butylene carbonate, dimethylvinylene carbonate, and aprotic gel polymers. 6. The lithium secondary battery of claim 5 wherein x is 10 and at least one Z is Cl. 7. The lithium secondary battery of claim 5 wherein x is 11 and Z is Cl. 8. The lithium secondary battery of claim 5 wherein x is 12. 9. The lithium secondary battery of claim 1 further comprising: a negative electrode, and a positive electrode, wherein the positive electrode comprises at least one oxide. 10. The lithium secondary battery of claim 9 wherein the negative electrode comprises at least one member selected from the group consisting of carbon, tin oxide, and silicon, or germanium compounds. 11. The lithium secondary battery of claim 9 wherein the positive electrode comprises at least one lithium oxide containing compound. 12. The lithium secondary battery of claim 10 wherein the negative electrode comprises carbon. 13. The lithium secondary battery of claim 11 wherein the positive electrode comprises at least one of LiNi1-xCoxO2 and LiMn2O4. 14. The lithium secondary battery of claim 1 further comprising a separator. 15. The lithium secondary battery of claim 14 wherein the separator comprises at least one member selected from the group consisting of nylon, cellulose, nitrocellulose, polysulfone, polyacrylonitrile, polyvinylidene fluoride, polypropylene, polyethylene and polybutene. 16. The lithium secondary battery of claim 1 further comprising at least one member selected from the group consisting of LiPF6, lithium perchlorate, lithium hexafluoroarsenate, lithium trifluoromethylsulfonate, lithium tetrafluoroborate, lithium bromide, and lithium hexafluoroantimonate. 17. The lithium secondary battery of claim 16 wherein said member comprises LiPF6. 18. The lithium secondary battery of claim 5 wherein said solvent comprises vinylene carbonate. 19. The lithium secondary battery of claim 1 wherein the conductivity of the salt is greater than 4.0 mS/cm. 20. The lithium secondary battery of claim 1 wherein the molecular weight of the salt is less than 569. 21. The lithium secondary battery of claim 1 wherein the decomposition temperature of the salt is greater than 400C. 22. The lithium secondary battery of claim 1 wherein Z is H. 23. The lithium secondary battery of claim 9 wherein x is 12, the solvent comprises at least one of ethylene carbonate and ethyl methyl carbonate, the negative electrode comprises carbon, and the positive electrode comprises LiMn2O4. 24. A rechargeable lithium battery electrolyte comprised of at least one salt and at least one carrier wherein the salt comprises: a lithium salt represented by the formula: description="In-line Formulae" end="lead"Li2B12FxZ12-x description="In-line Formulae" end="tail" wherein x is at least 8 but not more than 12 and Z represents H, Cl, and Br, wherein the carrier comprises at least one member selected from the group consisting of chloroethylene carbonate, butylene carbonate, dimethyi carbonate, dimethylvinylene carbonate, ethylene carbonate, ethyl methyl carbonate, diethyl carbonate, methyl propyl carbonate, ethyl propyl carbonate, dipropyl carbonate, bis(trifluoroethyl) carbonate, bis(pentafluoropropyl) carbonate, trifluoroethyl methyl carbonate, pentafluoroethyl methyl carbonate, heptafluoropropyl methyl carbonate, perfluorobutyl methyl carbonate, trifluoroethyl ethyl carbonate, pentafluoroethyl ethyl carbonate, propylene carbonate, heptafluoropropyl ethyl carbonate, perfluorobutyl ethyl carbonate, vinylene carbonate, fluorinated oligomers, dimethoxyethane, diglyme, triglyme, dimethylvinylene carbonate, trifluoropropylene carbonate tetraethyleneglycol, dimethyl ether, polyethylene glycols, sulf ones, polyethers, polyethylene oxides, polyimides, polyphosphazines, polyacrylonitriles, polysiloxanes, sulfonated polyimides, perfluorinated membranes, divinyl polyethylene glycols, polyethylene glycol-bis-(methyl acrylates), polyethylene glycol-bis(methyl methacrylates), polyether grafted polysiloxanes and gamma-butyrolactone; and wherein the oxidation potential of the electrolyte is greater than 4.2 V v. Li metal. 25. The rechargeable lithium battery electrolyte of claim 24 wherein x is at least 10. 26. The rechargeable lithium battery electrolyte of claim 25 wherein the carrier comprises at least one member selected from the group consisting of ethylene carbonate, dimethyl carbonate, ethyl methyl carbonate, diethyl carbonate, methyl propyl carbonate, methyl trifluoroethyl carbonate, dimethoxyethane, diglyme, and triglyme, propylene carbonate, trifluoropropylene carbonate, chloroethylene carbonate, vinylene carbonate, butylene carbonate, dimethylvinylene carbonate, and an aprotic gel polymer, or polymer matrix. 27. The rechargeable lithium battery electrolyte of claim 26 wherein the carrier is selected from the group consisting of ethylene carbonate and propylene carbonate. 28. The rechargeable lithium battery electrolyte of claim 26 wherein x is 10 and Z is Cl. 29. The rechargeable lithium battery electrolyte of claim 26 wherein z is 11 and Z is Cl. 30. The rechargeable lithium battery electrolyte of claim 24 wherein Z is H.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (15)
Johnson Jack W. (Fanwood NJ) Whittingham M. Stanley (Fanwood NJ), Cell containing an alkali metal anode, a solid cathode, and a closoborane and/or closocarborane electrolyte.
Appel Wolfgang,DEX ; Pasenok Sergej,DEX, Electrolyte system for lithium batteries and use of said system, and method for increasing the safety of lithium batteries.
Steen Yde-Andersen DK; Ningling Rao DK, Lithium salt/carbonate electrolyte system, a method for the preparation thereof, the use thereof and a battery containing the electrolyte system.
Angell Charles Austen ; Zhang Sheng-Shui ; Xu Kang, Wide electrochemical window solvents for use in electrochemical devices and electrolyte solutions incorporating such sol.
Casteel, Jr., William Jack; Ivanov, Sergei Vladimirovich; Jambunathan, Krishnakumar; Bailey, III, Wade Hampton, Dodecaborate salt radical anion compositions and methods for making and using such compositions.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.