摘要:
The disclosure describes a non-aqueous electrolyte battery with an improved cycle life. The non-aqueous electrolyte battery includes a positive electrode including a positive electrode layer, a negative electrode including a negative electrode layer, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte containing a lithium salt. The negative electrode layer may contain a negative electrode active material which can insert and release lithium ions at 0.4 V or more (V.S. Li/Li+). The lithium salt may contains LiPF6 with a concentration of less than 50% (including 0%). The non-aqueous electrolyte battery may meet the following two formulas: 1≦Q2/Q1 (I) and 1≦C/A≦2 (II), where Q1 represents a capacitance in a facing portion of the negative electrode, Q2 represents a capacitance in the facing portion of the positive electrode, A represents an area of a surface including the facing portion of the negative electrode of the negative electrode layer, and C represents an area of a surface including the facing portion of the positive electrode of the positive electrode layer.
摘要翻译:本公开描述了具有改善的循环寿命的非水电解质电池。 非水电解质电池包括正极,包括正极层,负极包括负极层,分隔件设置在正极和负极之间,隔离层含有锂盐的非水电解质。 负极层可以含有能够以0.4V以上(V.S.Li / Li +)插入和释放锂离子的负极活性物质。 锂盐可以含有浓度小于50%(包括0%)的LiPF 6。 非水电解质电池可以满足以下两个公式:1≦̸ Q2 / Q1(I)和1≦̸ C / A≦̸ 2(II)其中Q1表示负极的面对部分中的电容,Q2表示 电极在正极的相对部分中,A表示包括负极层的负极的相对部分的表面的面积,C表示包括正极的正极部分的表面的面积 电极层。
摘要:
According to one embodiment, there is provided a nonaqueous electrolyte battery. The negative electrode of the battery includes a negative electrode active material which can absorb and release lithium ions at a negative electrode potential of 0.4 V (V.S. Li/Li+) or more. The battery satisfying the following equations (I) and (II): 1≦Q2/Q1 (I) 0.5≦C/A≦0.999 (II)
摘要翻译:根据一个实施例,提供一种非水电解质电池。 电池的负极包括能够以0.4V(V.S.Li / Li +)以上的负极电位吸收和释放锂离子的负极活性物质。 满足以下等式(I)和(II)的电池:1≦̸ Q2 / Q1(I)0.5≦̸ C / A≦̸ 0.999(II)
摘要:
According to one embodiment, there is provided a nonaqueous electrolyte battery. The negative electrode of the battery includes a negative electrode active material which can absorb and release lithium ions at a negative electrode potential of 0.4 V (V.S. Li/Li+) or more. The battery satisfying the following equations (I) and (II): 1≦Q2/Q1 (I) 0.5≦C/A≦0.999 (II)
摘要:
A battery pack includes nonaqueous electrolyte batteries each comprising a positive electrode and a negative electrode. The positive electrode contains a lithium-transition metal oxide having a layered crystal structure. The negative electrode contains a lithium-titanium composite oxide having a spinel structure. And the positive electrodes and the negative electrodes satisfy the formula (1) given below: 1.02≦X≦2 (1) where X is a ratio of an available electric capacity of each of the negative electrodes at 25° C. to an available electric capacity of each of the positive electrodes at 25° C.
摘要:
A nonaqueous electrolyte battery includes a case, a positive electrode housed in the case and including a positive electrode active material containing a lithium-nickel composite oxide and at least one of lithium hydroxide and lithium oxide, the sum of lithium hydroxide and lithium oxide falling within not less than 0.1% to not more than 0.5% by weight based on the total amount of the positive electrode active material, a negative electrode housed in the case and capable of lithium intercalation-deintercalation, and a separator sandwiched between the positive electrode and the negative electrode and impregnated with a nonaqueous electrolyte containing γ-butyrolactone.
摘要:
A battery pack includes nonaqueous electrolyte batteries each comprising a positive electrode and a negative electrode. The positive electrode contains a lithium-transition metal oxide having a layered crystal structure. The negative electrode contains a lithium-titanium composite oxide having a spinel structure. And the positive electrodes and the negative electrodes satisfy the formula (1) given below: 1.02≦X≦2 (1) where X is a ratio of an available electric capacity of each of the negative electrodes at 25° C. to an available electric capacity of each of the positive electrodes at 25° C.
摘要:
Disclosed is a battery pack, comprising a secondary battery unit including at least one secondary battery, the at least one secondary battery comprising an electrode group and an insulating case having the electrode group housed therein, and the battery pack further comprising a heat conductive sheet which is provided at at least a part of the surface of the secondary battery unit and has a heat conductivity higher than a heat conductivity of the case.
摘要:
A non-aqueous electrolyte secondary battery includes an electrode body including a positive electrode and a negative electrode superimposed upon each other with a separator interposed therebetween. The negative electrode is superimposed upon the positive electrode in a state where a negative electrode active material layer, except the part on a proximal end part of a negative electrode tab, is positioned inside an outer edge of a positive electrode active material layer of the positive electrode. A width H1 of the negative electrode active material layer including the part on the proximal end part of the negative electrode tab, width H2 of the negative electrode active material layer or negative electrode current collector at a part other than the negative electrode tab, and width H3 of the positive electrode active material layer are formed to satisfy the relationships of H2
摘要:
An electric cell comprising a positive electrode, a negative electrode containing aluminum or aluminum alloy, and an electrolyte arranged between the positive electrode and the negative electrode, wherein the electrolyte includes: at least one ion selected from a group of a sulfate ion (SO42−) and a nitrate ion (NO3−), the concentration of the ion being in the range of 0.2 to 16 M/L; and an additive selected from a group of an organic acid, a salt of the organic acid, a hydrate of the organic acid, an ester of the organic acid, an ion of the organic acid, and derivatives thereof.
摘要:
An electric cell comprising a positive electrode, a negative electrode containing aluminum or aluminum alloy, and an electrolyte arranged between the positive electrode and the negative electrode, wherein the electrolyte includes: at least one ion selected from a group of a sulfate ion (SO42−) and a nitrate ion (NO3−), the concentration of the ion being in the range of 0.2 to 16 M/L; and an additive selected from a group of an organic acid, a salt of the organic acid, a hydrate of the organic acid, an ester of the organic acid, an ion of the organic acid, and derivatives thereof.