摘要:
In a non-aqueous electrolyte secondary battery, in order to adjust a cathode active material in which guest cation such as Na and Li is included, alkaline metal fluoride which is expressed by a general formula AF and transition metal fluoride which is expressed by a formula M′ F2 are subjected to a mechanical milling process to produce metal fluoride compound AM′ F3. The mechanical milling process desirably uses a planetary ball mill.
摘要:
The present invention provides a secondary battery using a liquid electrolyte excellent in storage characteristics. The secondary battery includes a cathode, an anode, and a liquid electrolyte, where the cathode and the anode contain at least one mutual active material. This symmetrical electrode configuration, that the at least one active material for the cathode and the anode is mutual, enables equalization of an electrode electric potential difference before charge or after discharge; and thus electrolyte degradation is efficiently restrained to improve storage characteristics.
摘要:
A lithium battery essentially consisting of an amorphous cathode active material mainly composed of V.sub.2 O.sub.5 and prepared by adding with at least one first additive selected from the group consisting of P.sub.2 O.sub.5, TeO.sub.2, GeO.sub.2, Sb.sub.2 O.sub.3, Bi.sub.2 O.sub.3 and B.sub.2 O.sub.3 and/or at least one second additive selected from the group consisting of MoO.sub.3 and WO.sub.3, heating to melt the admixture and then quenching the molten admixture; an anode active material made of metallic lithium or a lithium alloy; and an electrolyte made of a mixture of a aprotic solvent and a lithium salt. The battery is a small-sized and light-weight secondary battery having a high energy density and being improved in charge-discharge cycle lifetime.
摘要翻译:一种锂电池,其主要由主要由V 2 O 5组成的无定形正极活性材料组成,并通过添加至少一种选自P 2 O 5,TeO 2,GeO 2,Sb 2 O 3,Bi 2 O 3和B 2 O 3的第一添加剂和/或至少一种第二添加剂 选自MoO 3和WO 3,加热熔融混合物,然后淬火熔融混合物; 由金属锂或锂合金制成的负极活性材料; 以及由非质子溶剂和锂盐的混合物制成的电解质。 电池是具有高能量密度并且充放电循环寿命得到改善的小尺寸和重量轻的二次电池。
摘要:
The problem to be solved is to provide a liquid electrolyte for a fluoride ion battery which allows a larger capacity of the battery. Solving the problem by providing a liquid electrolyte for a fluoride ion battery including a fluoride salt and a solvent to dissolve the fluoride salt, characterized in that the solvent is an aromatic material having an aromatic cation and an anion, and a molar ratio of the aromatic cation to a fluoride ion is more than 1.
摘要:
Lithium based electrical cells having a new anode electrode construction are described. The cells have a sandwich construction of lithium sheet, conductive foil and lithium sheet, wherein the anode tab is welded directly onto the conductive foil not onto the lithium. Alternatively, the tab is connected onto the lithium in an area where the lithium does not dissolve during discharge, so that the tab will not become disconnected from the anode sheet.
摘要:
The present invention provides an electrolyte for use on a secondary lithium battery comprising amorphous V.sub.2 O.sub.5 base cathode active material, a metallic lithium base active material, and an electrolytic solution lithium salt dissolved in a mixed organic solvent. The organic solvent is ethylene carbonate mixed with one organic solvent of 2-methyltetrahydrofuran, 2,5-dimethyltetrahydrofuran, 1,3-dioxalan, 4-methyl-1,3-dioxalan, 1,2-dimethoxyethane, etc. The mixed ratio of ethylene carbonate ranges within 10 to 50%, and water content of the electrolytic solution ranges within 400 to 5 ppm, and the content of impurities other than water ranges within 1000 to 10 ppm. The resultant secondary lithium battery is excellent in charge-discharge cycle life.
摘要翻译:本发明提供了一种用于二次锂电池的电解质,其包含非晶体V 2 O 5基底阴极活性材料,金属锂基活性材料和溶解在混合有机溶剂中的电解液锂盐。 有机溶剂是与2-甲基四氢呋喃,2,5-二甲基四氢呋喃,1,3-二氧杂环戊烷,4-甲基-1,3-二氧杂环戊烷,1,2-二甲氧基乙烷等的一种有机溶剂混合的碳酸亚乙酯。 碳酸亚乙酯的范围为10〜50%,电解液的含水量为400〜5ppm,水以外的杂质含量为1000〜10ppm以下。 所得二次锂电池的充放电循环寿命优异。