摘要:
Electrolytes having a second cycle reduction current at 0.3 V vs Li/Li+ that is less than that of the first cycle. The electrolyte comprising a salt, which will not electrochemically passivate. A cell comprising a positive electrode, a negative electrode and an electrolyte having a second cycle reduction current at 0.3 V vs Li/Li+ that is less than that of the first cycle, said electrolyte comprising a salt, which will not electrochemically passivate. A method of forming an SEI layer in a cell comprising a positive electrode, a negative electrode and an electrolyte, said method comprising the step of overcharging the electrolyte prior to fabricating the cell, or said cell during the formation cycle.
摘要翻译:在0.3V下具有小于第一循环的电解液的Li / Li +的第二循环降低电流的电解质。 电解质包含不会电化学钝化的盐。 一种包含正极,负极和电解质的电池,其具有小于第一循环的电压的0.3V对Li / Li +的第二循环还原电流,所述电解质包含盐, 这不会电化学钝化。 一种在包括正极,负极和电解质的电池中形成SEI层的方法,所述方法包括在制造电池或在形成循环期间所述电池之前对电解液进行过充电的步骤。
摘要:
The invention relates to electrolyte salts for electrochemical devices of improved physical, chemical and electrochemical stability. The improvement resides in the use of anions of salts of the formula comprising: i) (B12FxZ12-x)2− wherein Z comprises at least one of H, Cl, Br or OR; R comprises at least one of H, alkyl or fluoroalkyl, or at least one polymer and x is at least 3 on an average basis but not more than 12; ii) ((R′R″R′″)NB12FxZ(11-x))−, wherein N is bonded to B and each of R′, R″, R′″ comprise a member independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl and a polymer; Z comprises H, Cl, Br, or OR, where R comprises H, alkyl or perfluoroalkyl or a polymer, and x is an integer from 0 to 11; or iii) (R″″CB11FxZ(11-x))−, wherein R″″ is bonded to C and comprises a member selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, and a polymer, Z comprises H, Cl, Br, or OR, wherein R comprises H, alkyl or perfluoroalkyl or a polymer, and x is an integer from 0 to 11.
摘要翻译:本发明涉及具有改进的物理,化学和电化学稳定性的电化学装置的电解质盐。 改进之处在于使用下式的盐阴离子,其包含:i)(B 12 R x Z 12-x N) 其中Z包括H,Cl,Br或OR中的至少一个; R包含H,烷基或氟烷基或至少一种聚合物中的至少一种,x平均为至少3,但不超过12; ii)((R'R''R“')NB 12 F x(11-x)) - 其中N与B键合,R',R“,R”'中的每一个包含独立地选自氢,烷基,环烷基,芳基和聚合物的成员; Z包括H,Cl,Br或OR,其中R包括H,烷基或全氟烷基或聚合物,x是0至11的整数; 或iii)(R“'CB 11)X Z(11-x)) - - - - 其中R“'键合到C并且包含选自氢,烷基,环烷基,芳基和聚合物的成员,Z包括H,Cl,Br或OR,其中R包括H,烷基或 全氟烷基或聚合物,x为0至11的整数。
摘要:
An electrochemical device and a proton conducting medium for use in an electrochemical device having a proton conducting electrolyte comprising the formula: HaMbQ.nH2O where H is a proton, M is a cation, Q is the fluoroborate or fluoroheteroborate anion, n ranges from 0.01 to 1000, a ranges from 0.01 to 2 and b ranges from 0 to 2, a and b are chosen to render the formula electrically neutral, and when b is greater than 0, the ratio of b to a is less than 100 to 1.
摘要:
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 salt of the formula: Li2B12FxZ12−x wherein x greater than or equal to 4 and Z represents H, Cl, and Br.
摘要翻译:本发明涉及由在非质子传递溶剂中负载的负极,正极,隔膜和锂基电解质组成的锂二次电池的改进。 改进在于使用下式的锂盐:<?in-line-formula description =“In-line formula”end =“lead”?> Li 2 B 12 β-in-line-formula description =“In-line Formulas”end =“tail”?>其中x大于 或等于4,Z表示H,Cl和Br。
摘要:
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 salt of the formula: Li2B12FxZ12-x wherein x greater than or equal to 4 and Z represents H, Cl, and Br.
摘要:
The present invention relates to lithium secondary batteries comprising a negative electrode, a positive electrode, a separator and a lithium-based electrolyte carried in an aprotic solvent, and to the electrolyte compositions, and to methods for purifying battery active materials. The electrolyte comprises at least one solvent and a lithium salt of the formula: Li2B12FxH12-x-yZywhere x+y is from 3 to 12, and x and y are independently from 0 to 12, and Z comprises at least one of Cl and Br.
摘要:
The present invention relates to lithium secondary batteries comprising a negative electrode, a positive electrode, a separator and a lithium-based electrolyte carried in an aprotic solvent, and to the electrolyte compositions. The electrolyte comprises a lithium salt of the formula: Li2B12FxH12-x-yZy where x+y is from 3 to 12, and x and y are independently from 0 to 12, and Z comprises at least one of Cl and Br.
摘要翻译:本发明涉及包含负极,正电极,隔板和在非质子传递溶剂中载带的锂基电解质的锂二次电池以及电解质组合物。 电解质包含下式的锂盐:<?in-line-formula description =“In-line Formulas”end =“lead”?> Li 2 B 12 β-line-formula description =“In-line Formulas”end =“tail”???????? >其中x + y为3至12,x和y独立地为0至12,Z包括Cl和Br中的至少一个。
摘要:
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: Li2B12FxZ12-x wherein x=>5 and Z represents H, Cl, and Br. Preferably, when x is less than 12, Z is Cl.
摘要:
The present invention relates a battery comprising: a lithium salt of the formula: Li2B12FxZ12-x where x averages at least 4 but not more than 12 and Z is H, Cl, or Br, and a solvent having a higher dielectric constant than a solvent consisting of a 3:7 ratio by weight of ethylene carbonate (EC) and diethyl carbonate (DEC).
摘要:
A method of preparing vicinal difluoro aromatic compounds in high yield from hydroxy aromatic compounds using various bases and a method of preparing intermediates thereof. A method for making a vicinal difluoro halogenated aromatic compound including providing a tetrafluoro derivative of a halogen substituted aromatic compound, wherein the tetrafluoro derivative has two fluorine atoms on each of two adjacent carbons and at least one additional halogen substituent; reacting the tetrafluoro derivative with a reducing agent in presence of a base for a reaction time sufficient to form the vicinal difluoro halogenated aromatic compound containing two vicinal fluorine substituents and the at least one additional halogen substituent, wherein the reducing agent is used in a reducing agent effective amount sufficient to retain the at least one additional halogen substituent.