Nonaqueous electrolytic cell and its manufacturing method
    1.
    发明申请
    Nonaqueous electrolytic cell and its manufacturing method 有权
    非水电解槽及其制造方法

    公开(公告)号:US20100178570A1

    公开(公告)日:2010-07-15

    申请号:US12310653

    申请日:2007-08-31

    IPC分类号: H01M6/16 H01M10/26 H01M10/04

    摘要: The invention aims to suppress gas generation in a nonaqueous electrolytic cell having a negative electrode containing negative active material such as lithium titanate and particularly suppress swelling in a nonaqueous electrolytic cell by suppressing gas generation at the time of storage at a high temperature. The nonaqueous electrolytic cell comprises a nonaqueous electrolyte containing an electrolytic salt and a nonaqueous solvent, a positive electrode, and a negative electrode containing a negative electrode material into/from which lithium ions are inserted/extracted at a potential higher than the lithium potential by 1.2 V. The nonaqueous electrolytic cell is characterized in that the nonaqueous electrolyte contains vinylene carbonate, the negative electrode has a coat thereon, and the nonaqueous electrolytic cell is used in a range of negative electrode potential nobler than the lithium potential by 0.8 V. A nonaqueous electrolytic cell manufacturing method is characterized in that a nonaqueous electrolyte containing vinylene carbonate is used, the initial charge-discharge is carried out under a condition that the negative potential in the completed charged state exceeds the lithium potential by 0.8 V, a coat is formed on the surface of the negative electrode or a coat is formed on the surface of the negative electrode at the initial charge-discharge in such a way at least once, the negative potential is lowered below the lithium potential by 0.4 V.

    摘要翻译: 本发明旨在抑制具有含钛酸锂等负极活性物质的负极的非水电解液中的气体产生,并且通过抑制在高温下储存时的气体产生而特别抑制非水电解槽中的溶胀。 非水电解液包含含有电解质盐和非水溶剂的非水电解质,正极和含有负极材料的负极,锂离子以高于锂电位的电位插入/提取1.2倍 非水电解质的特征在于,非水电解质含有碳酸亚乙烯酯,负极上具有涂层,非水电解质电池的电位比锂电位低0.8V。 电解槽制造方法的特征在于,使用含有碳酸亚乙烯酯的非水电解液,在完成充电状态的负电位超过锂电位0.8V的条件下进行初始充放电,在 负极的表面或涂层形成在其上 在初始充放电时负极的表面至少一次,负电位降低到低于锂电位0.4V。

    Non-aqueous electrolyte battery and method of manufacturing the same
    5.
    发明授权
    Non-aqueous electrolyte battery and method of manufacturing the same 有权
    非水电解质电池及其制造方法

    公开(公告)号:US08163423B2

    公开(公告)日:2012-04-24

    申请号:US12085934

    申请日:2006-12-01

    IPC分类号: H01M4/58 H01M6/18

    摘要: Gas generation of a non-aqueous electrolyte battery having a negative active material that intercalates/deintercalates lithium ions at a potential not lower than 1.2 V relative to the potential of lithium as negative electrode is suppressed.A non-aqueous electrolyte battery comprising a non-aqueous electrolyte containing an electrolyte salt and a non-aqueous solvent, a positive electrode and a negative electrode is characterized in that the main active material of said negative electrode is an active material that intercalates/deintercalates lithium ions at a potential not lower than 1.2 V relative to the potential of lithium and the auxiliary active material of said negative electrode is an active material that at least intercalates lithium ions at a potential lower than 1.2 V relative to the potential of lithium and that there exists lithium showing a spin-lattice relaxation time (T1) of not less than 1 second as determined by a solid-state Li—NMR measurement in the main active material of said negative electrode. A method of manufacturing a non-aqueous electrolyte battery containing a non-aqueous electrolyte, a positive electrode and a negative electrode (a main active material and an auxiliary active material of the negative electrode) is characterized in that the negative electrode potential is lowered to not higher than 0.8 V relative to the potential of lithium at least once in the initial cycle.

    摘要翻译: 抑制了以相对于锂的电位为负极的不低于1.2V的电位插入/脱嵌锂离子的负极活性物质的非水电解质电池的气体生成。 包含含有电解质盐和非水溶剂,正极和负极的非水电解质的非水电解质电池的特征在于,所述负极的主要活性物质是插入/脱嵌的活性物质 相对于锂的电位不低于1.2V的锂离子和所述负极的辅助活性材料的锂离子是相对于锂的电位至少插入低于1.2V的电位的锂离子的活性材料,并且 存在显示出通过在所述负极的主要活性材料中的固态Li-NMR测定所确定的不小于1秒的自旋晶格弛豫时间(T1)的锂。 包含非水电解质,正极和负极(负极的主要活性物质和辅助活性物质)的非水电解质电池的制造方法的特征在于,将负极电位降低至 在初始循环中相对于锂的电位至少不超过0.8V。

    Non-Aqueous Electrolyte Battery and Method of Manufacturing the Same
    7.
    发明申请
    Non-Aqueous Electrolyte Battery and Method of Manufacturing the Same 有权
    非水电解质电池及其制造方法

    公开(公告)号:US20090286160A1

    公开(公告)日:2009-11-19

    申请号:US12085934

    申请日:2006-12-01

    IPC分类号: H01M4/58 H01M4/82

    摘要: Gas generation of a non-aqueous electrolyte battery having a negative active material that intercalates/deintercalates lithium ions at a potential not lower than 1.2 V relative to the potential of lithium as negative electrode is suppressed.A non-aqueous electrolyte battery comprising a non-aqueous electrolyte containing an electrolyte salt and a non-aqueous solvent, a positive electrode and a negative electrode is characterized in that the main active material of said negative electrode is an active material that intercalates/deintercalates lithium ions at a potential not lower than 1.2 V relative to the potential of lithium and the auxiliary active material of said negative electrode is an active material that at least intercalates lithium ions at a potential lower than 1.2 V relative to the potential of lithium and that there exists lithium showing a spin-lattice relaxation time (T1) of not less than 1 second as determined by a solid-state Li—NMR measurement in the main active material of said negative electrode. A method of manufacturing a non-aqueous electrolyte battery containing a non-aqueous electrolyte, a positive electrode and a negative electrode (a main active material and an auxiliary active material of the negative electrode) is characterized in that the negative electrode potential is lowered to not higher than 0.8 V relative to the potential of lithium at least once in the initial cycle.

    摘要翻译: 抑制了以相对于锂的电位为负极的不低于1.2V的电位插入/脱嵌锂离子的负极活性物质的非水电解质电池的气体生成。 包含含有电解质盐和非水溶剂,正极和负极的非水电解质的非水电解质电池的特征在于,所述负极的主要活性物质是插入/脱嵌的活性物质 相对于锂的电位不低于1.2V的锂离子和所述负极的辅助活性材料的锂离子是相对于锂的电位至少插入低于1.2V的电位的锂离子的活性材料,并且 存在显示出通过在所述负极的主要活性材料中的固态Li-NMR测定所确定的不小于1秒的自旋晶格弛豫时间(T1)的锂。 包含非水电解质,正极和负极(负极的主要活性物质和辅助活性物质)的非水电解质电池的制造方法的特征在于,将负极电位降低至 在初始循环中相对于锂的电位至少不超过0.8V。

    Non-Aqueous Electrolyte Battery, Method of Manufacturing the Same and Method of Using the Same
    8.
    发明申请
    Non-Aqueous Electrolyte Battery, Method of Manufacturing the Same and Method of Using the Same 有权
    非水电解质电池及其制造方法及其使用方法

    公开(公告)号:US20090246604A1

    公开(公告)日:2009-10-01

    申请号:US12085902

    申请日:2006-12-01

    IPC分类号: H01M10/44

    摘要: A non-aqueous electrolyte battery suppresses gas generation in a non-aqueous electrolyte battery having a negative active material that intercalates and deintercalates lithium ions at a potential not lower than 1.2 V relative to the potential of lithium for the negative electrode thereof. The non-aqueous electrolyte battery comprises a non-aqueous electrolyte containing an electrolytic salt and a non-aqueous solvent, a positive electrode and a negative electrode having a negative active material that intercalates/deintercalates lithium ions at a potential not lower than 1.2 V relative to the potential of lithium and is characterized in that a film coat having a carbonate structure and a thickness of not less than 10 nm exists on the surface of said negative electrode and that the non-aqueous electrolyte battery is operated in a region of potential of the negative electrode higher than 0.8 V relative to the potential of lithium. A method of manufacturing a non-aqueous electrolyte battery having a non-aqueous electrolyte, a positive electrode and a negative electrode having a negative active material that intercalates/deintercalates lithium ions at a potential not lower than 1.2 V relative to the potential of lithium is characterized in that a film coat having a carbonate structure is brought into existence on the surface of said negative electrode by lowering the potential of the negative electrode to lower than 0.8 V relative to the potential of lithium at least once in an initial cycle.

    摘要翻译: 非水电解质电池抑制具有负极活性物质的非水电解质电池中的气体产生,所述负极活性物质以相对于其负极的锂的电位不低于1.2V的电位插入和脱嵌锂离子。 非水电解质电池包括含有电解质盐和非水溶剂的非水电解质,正极和负极,其负极活性物质插入/脱嵌锂离子,电位不低于1.2V 涉及锂的电位,其特征在于,在所述负极的表面上存在具有碳酸盐结构且厚度不小于10nm的膜涂层,并且所述非水电解质电池在电位的 相对于锂的电位,负极高于0.8V。 制造具有非水电解质,正极和负极的非水电解质电池的制造方法,其具有相对于锂的电位以不低于1.2V的电位插入/脱嵌锂离子的负极活性物质, 其特征在于,通过在初始循环中将负极的电位相对于锂的电位降低至低于0.8V至少一次,使得在所述负极的表面上存在具有碳酸酯结构的膜包衣。