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    • 7. 发明申请
    • SODIUM ION SECONDARY BATTERY
    • 钠离子二次电池
    • US20120015256A1
    • 2012-01-19
    • US13259042
    • 2010-03-25
    • Shinichi KomabaTomoaki OzekiWataru MurataToru Ishikawa
    • Shinichi KomabaTomoaki OzekiWataru MurataToru Ishikawa
    • H01M10/0569
    • H01M10/054H01M4/587H01M10/0569
    • Disclosed is a sodium-ion secondary battery having excellent charge and discharge efficiencies as well as excellent charge and discharge characteristics, wherein charging and discharging can be repeated without causing problems such as deterioration in battery performance. Specifically disclosed is a sodium ion secondary battery which is provided with a positive electrode, a negative electrode having a negative electrode active material, and a nonaqueous electrolyte solution containing a nonaqueous solvent. The nonaqueous solvent is substantially composed of a saturated cyclic carbonate (excluding the use of ethylene carbonate by itself), or a mixed solvent of a saturated cyclic carbonate and a chain carbonate, and a hard carbon is used as the negative electrode active material. It is preferable that the nonaqueous solvent used for the sodium-ion secondary battery is substantially composed of propylene carbonate, a mixed solvent of ethylene carbonate and diethyl carbonate, or a mixed solvent of ethylene carbonate and propylene carbonate.
    • 公开了具有优异的充放电效率以及优异的充放电特性的钠离子二次电池,其中可以重复充电和放电而不引起电池性能劣化等问题。 具体公开了一种钠离子二次电池,其具有正极,具有负极活性物质的负极和含有非水溶剂的非水电解液。 非水溶剂基本上由饱和环状碳酸酯(不包括使用碳酸亚乙酯本身)或饱和环状碳酸酯和链状碳酸酯的混合溶剂和硬碳作为负极活性物质组成。 用于钠离子二次电池的非水溶剂优选基本上由碳酸亚丙酯,碳酸亚乙酯和碳酸二乙酯的混合溶剂,碳酸亚乙酯和碳酸亚丙酯的混合溶剂组成。
    • 9. 发明授权
    • Sodium ion secondary battery
    • 钠离子二次电池
    • US09559381B2
    • 2017-01-31
    • US13259042
    • 2010-03-25
    • Shinichi KomabaTomoaki OzekiWataru MurataToru Ishikawa
    • Shinichi KomabaTomoaki OzekiWataru MurataToru Ishikawa
    • H01M10/0569H01M10/054H01M4/587
    • H01M10/054H01M4/587H01M10/0569
    • Disclosed is a sodium-ion secondary battery having excellent charge and discharge efficiencies as well as excellent charge and discharge characteristics, wherein charging and discharging can be repeated without causing problems such as deterioration in battery performance. Specifically disclosed is a sodium ion secondary battery which is provided with a positive electrode, a negative electrode having a negative electrode active material, and a nonaqueous electrolyte solution containing a nonaqueous solvent. The nonaqueous solvent is substantially composed of a saturated cyclic carbonate (excluding the use of ethylene carbonate by itself), or a mixed solvent of a saturated cyclic carbonate and a chain carbonate, and a hard carbon is used as the negative electrode active material. It is preferable that the nonaqueous solvent used for the sodium-ion secondary battery is substantially composed of propylene carbonate, a mixed solvent of ethylene carbonate and diethyl carbonate, or a mixed solvent of ethylene carbonate and propylene carbonate.
    • 公开了具有优异的充放电效率以及优异的充放电特性的钠离子二次电池,其中可以重复充电和放电而不引起电池性能劣化等问题。 具体公开了一种钠离子二次电池,其具有正极,具有负极活性物质的负极和含有非水溶剂的非水电解液。 非水溶剂基本上由饱和环状碳酸酯(不包括使用碳酸亚乙酯本身)或饱和环状碳酸酯和链状碳酸酯的混合溶剂和硬碳作为负极活性物质组成。 用于钠离子二次电池的非水溶剂优选基本上由碳酸亚丙酯,碳酸亚乙酯和碳酸二乙酯的混合溶剂,碳酸亚乙酯和碳酸亚丙酯的混合溶剂组成。