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    • 1. 发明专利
    • Non-aqueous electrolyte secondary battery and the nonaqueous electrolyte
    • 非电解电解质二次电池和非电解电解质
    • JP2012038737A
    • 2012-02-23
    • JP2011220640
    • 2011-10-05
    • Mitsubishi Chemicals CorpSanyo Electric Co Ltd三洋電機株式会社三菱化学株式会社
    • TAKEHARA MASAHIROKOTADO MIWATAMURA NOBUYUKIJINNO MARUO
    • H01M10/0567H01M4/134H01M10/052H01M10/0568H01M10/0569
    • Y02E60/122
    • PROBLEM TO BE SOLVED: To obtain superior charge/discharge cycle characteristics together with high charge/discharge capacity by suppressing a reaction or the like between a negative electrode active material and a nonaqueous electrolyte in a nonaqueous electrolyte secondary battery in which a thin film of the negative electrode active material containing amorphous or microcrystal silicon or its alloy is formed on a current collector and the thin film of the negative electrode active material is separated into a columnar shape by a gap.SOLUTION: The nonaqueous electrolyte secondary battery includes: a negative electrode 2 in which the thin film of the negative electrode active material comprising the amorphous or microcrystal silicon thin film to store/release lithium is formed on a current collector 2b, and the thin film of the negative electrode active material is separated into the columnar shape by the gap formed in the thickness direction; a positive electrode 1 using a positive electrode active material to store/release lithium; and a nonaqueous electrolyte solution in which lithium salt is dissolved into a nonaqueous solvent. In the battery, a carbonate compound having alkyl group combined with fluorine or alkylene group is contained in the nonaqueous electrolyte solution.
    • 要解决的问题:为了通过抑制非水电解质二次电池中的负极活性物质和非水电解质之间的反应等来获得优异的充电/放电循环特性以及高的充电/放电容量,其中薄的 含有非晶或微晶硅或其合金的负极活性物质的膜形成在集电体上,负极活性物质的薄膜通过间隙分离为柱状。 解决方案:非水电解质二次电池包括:在集电体2b上形成负极2,其中包含用于储存/释放锂的非晶或微晶硅薄膜的负极活性材料的薄膜形成在集电体2b上, 通过沿厚度方向形成的间隙将负极活性物质的薄膜分离成柱状, 使用正极活性物质来储存/释放锂的正极1; 以及将锂盐溶解在非水溶剂中的非水电解液。 在电池中,在非水电解液中含有具有与氟或亚烷基结合的烷基的碳酸酯化合物。 版权所有(C)2012,JPO&INPIT
    • 2. 发明专利
    • Non-aqueous electrolyte secondary battery and the nonaqueous electrolyte
    • 非电解电解质二次电池和非电解电解质
    • JP2006092748A
    • 2006-04-06
    • JP2004272661
    • 2004-09-21
    • Mitsubishi Chemicals CorpSanyo Electric Co Ltd三洋電機株式会社三菱化学株式会社
    • TAKEHARA MASAHIROKOTADO YOSHIKAZUTAMURA NOBUYUKIJINNO MARUO
    • H01M4/02H01M4/134H01M4/38H01M10/05H01M10/052H01M10/0567H01M10/0568H01M10/0569
    • Y02E60/122
    • PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery which inhibits the reaction of a cathode active substance and a nonaqueous electrolyte and the like, and can attain a high charge-discharge capacity and excellent charge-discharge cycle performance, where a thin film made of the cathode active substance including a metal to store/emit lithium is formed on a collector of the nonaqueous electrolyte secondary battery, and the thin film made of the cathode active substance is divided into pillars by cuts. SOLUTION: The nonaqueous electrolyte secondary battery is constituted such that: a cathode of the pillars is formed into which the thin film made of a cathode active substance 2a is divided by cuts 2c, where the cathode active substance 2a includes the metal to store/emit lithium, and the thin film is formed on a collector 2b; an anode which uses an anode active substance to store/emit lithium; and a nonaqueous electrolyte made of a nonaqueous solvent into which a lithium salt is dissolved where other lithium salt than LiBF 4 is dissolved into the nonaqueous electrolyte, and the nonaqueous electrolyte is doped with BF 4 salt. COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:提供抑制阴极活性物质和非水电解质等的反应的非水电解质二次电池,能够获得高的充放电容量和优异的充放电循环性能,其中 在非水电解质二次电池的集电体上形成由包含存储/放出锂的金属的阴极活性物质制成的薄膜,由阴极活性物质制成的薄膜通过切割分割为支柱。 解决方案:非水电解质二次电池被构成为:形成由阴极活性物质2a制成的薄膜被切割部分2c分割成柱状的阴极,阴极活性物质2a包括金属, 存储/发射锂,并且薄膜形成在集电体2b上; 使用阳极活性物质来储存/释放锂的阳极; 以及由非水溶剂制成的非水电解质,其中将锂盐溶解在其中比LiBF 4 的其它锂盐溶解在其中的非水溶剂中,并且非水电解质掺杂有BF / SB>盐。 版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Manufacturing method of lithium secondary battery
    • 锂二次电池的制造方法
    • JP2010198904A
    • 2010-09-09
    • JP2009042289
    • 2009-02-25
    • Sanyo Electric Co Ltd三洋電機株式会社
    • FUKUI ATSUSHIOGASAWARA TAKESHIJINNO MARUO
    • H01M10/052H01M4/36H01M4/505H01M4/525H01M10/0569H01M10/058
    • Y02P70/54
    • PROBLEM TO BE SOLVED: To provide a manufacturing method of a lithium secondary battery having a lithium transition metal complex oxide positive electrode and a silicon negative electrode, and capable of manufacturing the lithium secondary battery superior in cycle characteristics in the case of carrying out charge and discharge at a high charging rate. SOLUTION: Lithium transition metal complex oxide particles having a layered structure expressed by a chemical formula Li a Ni x Mn y Co z O 2 (0≤a≤1.1, x+y+z=1, 0≤x≤1, 0≤y≤1, and 0≤z≤1) is mixed into an Al 3+ aqueous solution, and by making pH of the aqueous solution 7 or more, Al(OH) 3 particles are arranged on a surface of the lithium transition metal complex oxide particles, and after that, by applying heat-treatment to the lithium transition metal complex oxide particles in which the Al(OH) 3 particles are arranged on the surface in an oxidized atmosphere at 450°C to 650°C, the Al(OH) 3 particles are converted into Al 2 O 3 particles, and they are stuck to the surface of the lithium transition metal complex oxide particles. COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:提供具有锂过渡金属复合氧化物正极和硅负极的锂二次电池的制造方法,并且能够制造在携带时具有优异的循环特性的锂二次电池 以高充电率进行充放电。 解决方案:具有由化学式Li表示的层状结构的锂过渡金属复合氧化物颗粒Ni x Y Co 3 + 水溶液,通过使水溶液的pH为7以上,将Al(OH)3 SB 3颗粒排列在锂过渡层的表面上 金属复合氧化物粒子,然后通过对在氧化气氛中的450℃的表面上配置Al(OH) 3 粒子的锂过渡金属络合物氧化物粒子进行热处理 在350℃至650℃之间,将Al(OH)3 SB 3颗粒转化为AlS / SiO 3 SB 3颗粒,并将它们粘附到表面 的锂过渡金属复合氧化物颗粒。 版权所有(C)2010,JPO&INPIT