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    • 3. 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
    • 6. 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
    • 8. 发明专利
    • Lithium secondary battery
    • 锂二次电池
    • JP2005285651A
    • 2005-10-13
    • JP2004100359
    • 2004-03-30
    • Sanyo Electric Co Ltd三洋電機株式会社
    • YOSHIDA TOMOKAZUJINNO MARUO
    • H01M4/64H01M4/134H01M4/38H01M4/40H01M4/66H01M4/70H01M10/05H01M4/02H01M10/40
    • H01M10/052H01M4/134H01M4/1395H01M4/386H01M4/405H01M4/66H01M4/70H01M10/0565H01M2004/021H01M2004/027
    • PROBLEM TO BE SOLVED: To provide a lithium secondary battery in which occurrence of wrinkles in a current collector is suppressed that may occur in the case an alloy cathode is used, and which is superior in initial charge and discharge performances and in cycle properties.
      SOLUTION: In the lithium secondary battery provided with an anode, non-aqueous electrolyte material and the cathode in which cathode active material layer 3a is formed on the unevenly formed surface of a cathode current collector 3b, the cathode active material layer 3a is composed of a material that is alloyed with lithium, while the thickness (μm) of the cathode active material layer 3a/ten points average coarseness Rz (μm) of the cathode current collector 3b is 0.5 or more and 4 or less, and the tensile strength (N/mm
      2 ) of the cathode current collector 3b at 25°C×cathode current collector base thickness (mm)/thickness (μm) of the cathode active material layer 3a is 2 or more.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种锂二次电池,其中在使用合金阴极的情况下抑制在集电体中产生皱纹,并且其初始充放电性能和周期性优异 属性。 解决方案:在具有阳极的锂二次电池中,非水电解质材料和阴极活性物质层3a形成在阴极集电体3b的不均匀形成的表面上的阴极,正极活性物质层3a 由与锂合金的材料构成,阴极活性物质层3a的厚度(μm)/阴极集电体3b的10点平均粗糙度Rz(μm)为0.5以上且4以下, 阴极集电体3b的25℃的拉伸强度(N / mm×SP> 2 )×阴极集电体基体厚度(mm)/阴极活性物质层3a的厚度(μm)为2以上 。 版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Nonaqueous electrolyte and lithium secondary battery
    • 非电解电解质和锂二次电池
    • JP2005235591A
    • 2005-09-02
    • JP2004043560
    • 2004-02-19
    • Mitsui Chemicals IncSanyo Electric Co Ltd三井化学株式会社三洋電機株式会社
    • HIBARA AKIOHAYASHI TAKASHIJINNO MARUOTAMURA NOBUYUKI
    • H01M10/05H01M4/134H01M4/38H01M10/052H01M10/0569H01M10/40H01M4/02
    • Y02E60/122
    • PROBLEM TO BE SOLVED: To provide a lithium secondary battery preventing an expansion of the battery in charge/discharge caused by reduction of an electrolyte and having very low self discharge, in the battery using a negative electrode containing a negative active material comprising a group IIB, IIIB, IVB, or VB element in the periodic table forming a lithium compound or solid solution.
      SOLUTION: In the lithium secondary battery having structure containing an electrode group 5 comprising a negative electrode 2, a positive electrode 3, and a separator 4, a cylindrical bag 6, a negative electrode lead 2a, and a positive electrode lead 3a for example, a nonaqueous solvent of an electrolyte with which the electrode group 5 is impregnated comprises a saturated cyclic carbonate, an unsaturated cyclic carbonate having a carbon-carbon unsaturated bond, and a chain carbonate, and the content of the chain carbonate is prescribed to less than 20 vol.% of the whole amount of the nonaqueous solvent.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 解决的问题:提供一种锂二次电池,其使用含有负极活性物质的负极来防止由电解质还原导致的充电/放电中的电池膨胀并且具有非常低的自放电, 形成锂化合物或固溶体的周期表中的IIB,IIIB,IVB或VB族元素。 解决方案:在具有包含负极2,正极3和隔膜4的电极组5的结构的锂二次电池中,圆筒形袋6,负极引线2a和正极引线3a 例如,浸渍电极组5的电解质的非水溶剂包括饱和环状碳酸酯,碳 - 碳不饱和键的不饱和环状碳酸酯和链状碳酸酯,链状碳酸酯的含量被规定为 小于20体积%的全部非水溶剂。 版权所有(C)2005,JPO&NCIPI