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    • 28. 发明授权
    • Electrochemical device
    • 电化学装置
    • US08637177B2
    • 2014-01-28
    • US13255897
    • 2010-03-12
    • Hirokazu NomuraAkira YamashitaFusaji Kita
    • Hirokazu NomuraAkira YamashitaFusaji Kita
    • H01M2/16H01G9/02
    • H01M10/0525H01G9/02H01G11/32H01G11/52H01G11/64H01M2/1653H01M2/1686H01M4/133H01M4/587H01M2004/021Y02E60/13
    • The electrochemical device of the present invention comprises a positive electrode (2), a negative electrode (1), a nonaqueous electrolyte and a separator (3). The separator (3) includes a porous layer (I) composed of a microporous film composed predominantly of a thermoplastic resin and a porous layer (II) containing a filler having a heat-resistant temperature of 150° C. or higher as the main component. The negative electrode (1) contains graphite having an R value of 0.1 to 0.5 and d002 of 0.338 nm or less as a negative electrode active material, where the R value is a ratio of a peak intensity at 1360 cm−1 to a peak intensity at 1580 cm−1 in an argon ion laser Raman spectrum and the d002 is a lattice spacing between 002 planes. The ratio of the graphite to the negative electrode active material is 30 mass % or more, and the nonaqueous electrolyte contains vinyl ethylene carbonate or a derivative thereof, or a dinitrile compound or acid anhydride.
    • 本发明的电化学装置包括正极(2),负极(1),非水电解质和隔膜(3)。 分离器(3)包括由主要由热塑性树脂构成的微孔膜和包含耐热温度为150℃以上的填料的多孔层(II)构成的多孔层(I)作为主要成分 。 负极(1)含有R值为0.1〜0.5,d002为0.338nm以下的石墨作为负极活性物质,其中,R值为1360cm -1处的峰值强度与峰值强度的比值 在氩离子激光拉曼光谱中为1580cm -1,d002为002平面之间的晶格间距。 石墨与负极活性物质的比例为30质量%以上,非水电解质含有碳酸乙烯酯或其衍生物,二腈化合物或酸酐。
    • 29. 发明申请
    • ELECTROCHEMICAL DEVICE
    • 电化学装置
    • US20110318631A1
    • 2011-12-29
    • US13255897
    • 2010-03-12
    • Hirokazu NomuraAkira YamashitaFusaji Kita
    • Hirokazu NomuraAkira YamashitaFusaji Kita
    • H01M2/16H01G9/155
    • H01M10/0525H01G9/02H01G11/32H01G11/52H01G11/64H01M2/1653H01M2/1686H01M4/133H01M4/587H01M2004/021Y02E60/13
    • The electrochemical device of the present invention comprises a positive electrode (2), a negative electrode (1), a nonaqueous electrolyte and a separator (3). The separator (3) includes a porous layer (I) composed of a microporous film composed predominantly of a thermoplastic resin and a porous layer (II) containing a filler having a heat-resistant temperature of 150° C. or higher as the main component. The negative electrode (1) contains graphite having an R value of 0.1 to 0.5 and d002 of 0.338 nm or less as a negative electrode active material, where the R value is a ratio of a peak intensity at 1360 cm−1 to a peak intensity at 1580 cm−1 in an argon ion laser Raman spectrum and the d002 is a lattice spacing between 002 planes. The ratio of the graphite to the negative electrode active material is 30 mass % or more, and the nonaqueous electrolyte contains vinyl ethylene carbonate or a derivative thereof, or a dinitrile compound or acid anhydride.
    • 本发明的电化学装置包括正极(2),负极(1),非水电解质和隔膜(3)。 分离器(3)包括由主要由热塑性树脂构成的微孔膜和包含耐热温度为150℃以上的填料的多孔层(II)构成的多孔层(I)作为主要成分 。 负极(1)含有R值为0.1〜0.5,d002为0.338nm以下的石墨作为负极活性物质,其中,R值为1360cm -1处的峰值强度与峰值强度的比值 在氩离子激光拉曼光谱中为1580cm -1,d002为002平面之间的晶格间距。 石墨与负极活性物质的比例为30质量%以上,非水电解质含有碳酸乙烯酯或其衍生物,二腈化合物或酸酐。