摘要:
The storage characteristics in a charged state are improved in a non-aqueous electrolyte secondary battery containing a lithium cobalt oxide as a positive electrode active material. The non-aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material; a negative electrode containing a negative electrode active material other than metallic lithium; and a non-aqueous electrolyte. The positive electrode active material contains a lithium cobalt oxide as its main component. The non-aqueous electrolyte contains 0.1 to 10 volume % of a compound having an ether group. The positive electrode active material and the negative electrode active material are contained so that the charge capacity ratio of the negative electrode to the positive electrode is from 1.0 to 1.2 when the battery is charged until the potential of the positive electrode reaches 4.4 to 4.5 V (vs. Li/Li+)
摘要翻译:在含有钴酸锂作为正极活性物质的非水电解质二次电池中,充电状态下的储存特性得到改善。 非水电解质二次电池包括含有正极活性物质的正极; 含有金属锂以外的负极活性物质的负极; 和非水电解质。 正极活性物质以钴酸锂为主要成分。 非水电解质含有0.1〜10体积%的具有醚基的化合物。 包含正极活性物质和负极活性物质,使得当电池充电直至正极的电位达到4.4至4.5V(负极)时,负极与正极的充电容量比为1.0至1.2 vs. Li / Li +)
摘要:
The present invention provides a nonaqueous electrolyte secondary battery with an excellent packing property and remarkably improved high-temperature cycle characteristics and thermal stability. The nonaqueous electrolyte secondary battery 10 includes a positive electrode plate 11 having a positive electrode active material able to absorb and desorb lithium ions, a negative electrode plate having a negative electrode active material capable of absorption and desorption of lithium ions, and a nonaqueous electrolyte, and the positive electrode active material includes a mixture of material A: LiwNixCoyMnzO2 (where 1.00≦w≦1.30, x+y+z=1, 0.40≦x≦0.50, and 0.30≦y≦0.40) and material B: LiwNixCoyMnzO2 (where 1.00≦w≦1.30, x+y+z=1, 0.30≦x≦0.35, and 0.30≦y≦0.35).
摘要翻译:本发明提供一种具有优异的包装性能和显着提高的高温循环特性和热稳定性的非水电解质二次电池。 非水电解质二次电池10包括具有能够吸收和解吸锂离子的正极活性物质的正极板11,具有能够吸收和解吸锂离子的负极活性物质的负极板和非水电解质, 正极活性物质包括材料A:LiwNixCoyMnzO2(其中1.00≦̸ w≦̸ 1.30,x + y + z = 1,0.40& nl; x< lE; 0.50和0.30≦̸ y≦̸ 0.40)和材料B: LiwNixCoyMnzO2(其中1.00≦̸ w≦̸ 1.30,x + y + z = 1,0.30≦̸ x≦̸ 0.35和0.30≦̸ y≦̸ 0.35)。
摘要:
A method for producing a positive electrode active material that realizes a non-aqueous electrolyte secondary cell having high discharge capacity and excellent high temperature preservation characteristic is provided. The method includes: an underwater kneading step of kneading lithium nickel composite oxide (LixNi1-yMyOz, 0.9
摘要翻译:提供一种实现具有高放电容量和优异的高温保存特性的非水电解质二次电池的正极活性物质的制造方法。 该方法包括:将锂镍复合氧化物(Li x Ni 1 N y O y O y z z)混合的水下捏合步骤, /,其中选自Al,Co和Mn中的至少一种),锂铁磷复合氧化物(LiFePO 4),0.9 4 sub>),导电碳源和水; 在水下捏合步骤之后,在水下捏合步骤之后从混合物中除去水的清洁步骤; 并且在清洁步骤之后,在200至800℃的还原气氛中烘烤该混合物的烘烤步骤。
摘要:
A non-aqueous electrolyte secondary cell that has high capacity and excellent cycle characteristic while preventing cell swelling is provided. The positive electrode of the cell has, as the positive electrode active material, lithium nickel composite oxide represented by LixNi1-yMyOz where 0.9
摘要:
The storage characteristics in a charged state are improved in a non-aqueous electrolyte secondary battery containing a lithium cobalt oxide as a positive electrode active material. The non-aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material; a negative electrode containing a negative electrode active material other than metallic lithium; and a non-aqueous electrolyte. The positive electrode active material contains a lithium cobalt oxide as its main component. The non-aqueous electrolyte contains 0.1 to 10 volume % of a compound having an ether group. The positive electrode active material and the negative electrode active material are contained so that the charge capacity ratio of the negative electrode to the positive electrode is from 1.0 to 1.2 when the battery is charged until the potential of the positive electrode reaches 4.4 to 4.5 V (vs. Li/Li+)
摘要:
A non-aqueous electrolyte secondary cell that has high capacity and excellent cycle characteristic while preventing cell swelling is provided. The positive electrode of the cell has, as the positive electrode active material, lithium nickel composite oxide represented by LixNi1-yMyOz where 0.9
摘要翻译:提供具有高容量和优异的循环特性同时防止细胞膨胀的非水电解质二次电池。 作为正极活性物质,电池的正极具有由Li x Ni 1-y M y Y y所表示的锂镍复合氧化物, 其中0.9
摘要:
Low-temperature charge-discharge performance is improved in a non-aqueous electrolyte secondary battery that employs flake graphite as a negative electrode active material. A non-aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material capable of intercalating and deintercalating lithium ions, a negative electrode containing a negative electrode active material capable of intercalating and deintercalating lithium ions, and a non-aqueous electrolyte. The negative electrode includes a mixture layer (1) containing, as the negative electrode active material, a graphite material having flake-shaped primary particles, a current collector (3) made of Cu or a Cu alloy, and an intermediate layer (2) disposed between the mixture layer (1) and the current collector (3) and composed of a material that intercalates and deintercalates lithium ions at a nobler potential than the graphite material.
摘要:
A non-aqueous electrolyte cell that is light in weight and excellent in sealing performance is provided. This object is accomplished by the following structure of a non-aqueous electrolyte cell. In the non-aqueous electrolyte cell, electric generation elements are housed in a bottomed-cylindrical outer casing can, the end portion at the opening side of the bottomed-cylindrical outer casing can is crimp-sealed via a gasket, one end of a current output terminal is connected to either one of the positive and negative electrodes, which are electric generation elements, and the other end of the current output terminal protrudes outside the cell through the opening of the bottomed-cylindrical outer casing can. The current output terminal has a flange portion and a tapering corner portion formed on the lower surface of the flange portion. Both surfaces of the flange portion are in touch with the gasket, and the crimping is made to a portion below the flange portion.
摘要:
The storage characteristics in a charged state are improved in a non-aqueous electrolyte secondary battery containing a lithium cobalt oxide as a positive electrode active material. The non-aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material; a negative electrode containing a negative electrode active material other than metallic lithium; and a non-aqueous electrolyte. The positive electrode active material contains a lithium cobalt oxide as its main component. The non-aqueous electrolyte contains 0.1 to 10 volume % of a compound having an ether group. The positive electrode active material and the negative electrode active material are contained so that the charge capacity ratio of the negative electrode to the positive electrode is from 1.0 to 1.2 when the battery is charged until the potential of the positive electrode reaches 4.4 to 4.5 V (vs. Li/Li+).
摘要:
A method for producing a positive electrode active material that realizes a non-aqueous electrolyte secondary cell having high discharge capacity and excellent high temperature preservation characteristic is provided. The method includes: an underwater kneading step of kneading lithium nickel composite oxide (LixNi1-yMyOz, 0.9