摘要:
A nonaqueous electrolyte which contains a nonaqueous organic solvent and a lithium salt dissolved therein is provided. Also provided is a lithium secondary battery employing the nonaqueous electrolyte.
摘要:
A non-aqueous liquid electrolyte secondary battery comprising a anode electrode and a cathode electrode, capable of intercalating and deintercalating lithium ions, and a non-aqueous liquid electrolyte, having high charging capacity, capable of maintaining excellent characteristics over a long period of time and excellent in discharge capacity retention in particular, is provided. The non-aqueous liquid electrolyte contains at least one of: (i) a compound represented by the general formula (I) below and a saturated cyclic carbonate compound; (ii) a compound represented by the general formula (II) below; and (iii) a compound represented by the general formula (III-1) below. (In the above formula (I), n represents an integer which is greater than or equal to 3, m represents an integer which is greater than or equal to 1, and the sum of n and m is greater than or equal to 5. All or part of the hydrogen atoms may be substituted with a fluorine atom.) (In the above formula (II), X represents —SO2 or —SO—, and R1 to R6 each represent, independently of each other, an unsubstituted alkyl group or halogen-substituted alkyl group.) A-N═C═O (III-1) (In the above formula (III-1), A represents an element or group other than a hydrogen.)
摘要:
An object of the present invention is to provide a battery of high capacity that is excellent in storage, load, cycle, and continuous charge characteristics and that reduces gas generation; and a nonaqueous electrolyte for use in the battery. The invention relates to a nonaqueous electrolyte which comprises a nonaqueous organic solvent and a lithium salt dissolved therein, wherein the nonaqueous organic solvent contains at least one compound selected from the group consisting of acid anhydrides and carbonic esters having an unsaturated bond, and at least one compound selected from the group consisting of sulfonic compounds and fluorine-containing aromatic compounds having 9 carbon atoms or less; and a lithium secondary battery employing the same.
摘要:
A nonaqueous electrolytic solution cell having a negative electrode containing lithium as an active material, a positive electrode, a nonaqueous electrolytic solution consisting of solute and organic solvent, a separator, and an outer can, wherein the organic solvent contains a compound having an S—O bond, and a current collector for the positive electrode and an electrolytic solution-contacting portion on the positive electrode side of the outer can are made of valve metal or alloy thereof is disclosed. The nonaqueous electrolytic solution cell of the present invention is excellent in low-temperature characteristics and long-term stability, and also in cycle characteristics for use as a secondary battery.
摘要:
A non-aqueous liquid electrolyte suitable for use in a non-aqueous liquid electrolyte secondary battery comprising a negative electrode and a positive electrode, capable of intercalating and deintercalating lithium ions, and the non-aqueous liquid electrolyte, the negative electrode containing a negative-electrode active material having at least one kind of atom selected from the group consisting of Si atom, Sn atom and Pb atom, wherein the non-aqueous liquid electrolyte comprises a carbonate having at least either an unsaturated bond or a halogen atom.
摘要:
The present invention provides a nonaqueous electrolytic solution which can give excellent cycle characteristics. The nonaqueous electrolytic solution contains a linear carbonate represented by the formula (1): wherein, in the formula (1), Xa represents each independently hydrogen or any group; Ra represents optionally substituted alkyl; and n represents an integer of zero or more.
摘要:
A non-aqueous electrolyte secondary battery comprising a negative electrode, a positive electrode and an electrolyte having a lithium salt dissolved in a non-aqueous solvent characterized in that said non-aqueous solvent contains a vinylethylene carbonate compound represented by the general formula (I) in an amount of from 0.01 to 20% by weight is subject to minimized decomposition of the electrolyte and can provide a high capacity as well as exhibits excellent storage properties and cycle life performance. wherein R1, R2, R3, R4, R5 and R6 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
摘要:
A non-aqueous liquid electrolyte suitable for use in a non-aqueous liquid electrolyte secondary battery comprising a negative electrode and a positive electrode, capable of intercalating and deintercalating lithium ions, and the non-aqueous liquid electrolyte, the negative electrode containing a negative-electrode active material having at least one kind of atom selected from the group consisting of Si atom, Sn atom and Pb atom, wherein the non-aqueous liquid electrolyte comprises a carbonate having at least either an unsaturated bond or a halogen atom.
摘要:
A non-aqueous liquid electrolyte suitable for use in a non-aqueous liquid electrolyte secondary battery comprising a negative electrode and a positive electrode, capable of intercalating and deintercalating lithium ions, and the non-aqueous liquid electrolyte, the negative electrode containing a negative-electrode active material having at least one kind of atom selected from the group consisting of Si atom, Sn atom and Pb atom, wherein the non-aqueous liquid electrolyte comprises a carbonate having at least either an unsaturated bond or a halogen atom.
摘要:
A non-aqueous liquid electrolyte secondary battery comprising an anode electrode and a cathode electrode, capable of intercalating and deintercalating lithium ions, and a non-aqueous liquid electrolyte, having high charging capacity, capable of maintaining excellent characteristics over a long period of time and excellent in discharge capacity retention in particular, is provided. The non-aqueous liquid electrolyte contains at least, at least, a carbonate having at least either an unsaturated bond or a halogen atom, and a compound of formula (III-1) A-N═C═O where A represents an element or group other than a hydrogen.
摘要翻译:一种包含能够嵌入和脱嵌锂离子的阳极和阴极的非水电解质二次电池和具有高充电能力的非水电解液,能够长期保持优异的特性, 提供了放电容量保持特别优异的优点。 非水电解质电解液至少含有至少具有不饱和键或卤素原子的碳酸酯和式(III-1)化合物AN = C = O,其中A表示其它元素或基团 比氢气。