NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    45.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    非水电解质二次电池

    公开(公告)号:US20140045057A1

    公开(公告)日:2014-02-13

    申请号:US13943016

    申请日:2013-07-16

    Abstract: To provide with high productivity a non-aqueous electrolyte secondary battery having high capacity.The present invention is a non-aqueous electrolyte secondary battery provided with an electrode assembly and a non-aqueous electrolyte including a non-aqueous solvent, the electrode assembly including a positive electrode and a negative electrode. In the positive electrode, a positive electrode active material layer is formed on a positive electrode core. In the non-aqueous electrolyte secondary battery, the non-aqueous solvent includes 30 to 70 vol % ethylene carbonate at 25° C. and 1 atm, the non-aqueous electrolyte includes lithium bis(oxalato)borate, and the packing density of the positive electrode active material layer is from 2.0 to 2.8 g/ml.

    Abstract translation: 提供高容量的非水电解质二次电池。 本发明是一种非水电解质二次电池,其具有电极组件和包含非水溶剂的非水电解质,所述电极组件包括正极和负极。 在正极中,在正极芯上形成正极活性物质层。 在非水电解质二次电池中,非水溶剂在25℃和1atm下含有30〜70体积%的碳酸亚乙酯,非水电解质包括双(草酸)硼酸锂,并且所述非水电解质的包装密度 正极活性物质层为2.0〜2.8g / ml。

    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    46.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    非水电解质二次电池

    公开(公告)号:US20140045013A1

    公开(公告)日:2014-02-13

    申请号:US13943113

    申请日:2013-07-16

    Abstract: To provide a non-aqueous electrolyte secondary battery having high capacity and superior safety.The present invention is a non-aqueous electrolyte secondary including having a wound electrode assembly of a positive electrode, negative electrode and separator housed in an outer can having both a bottom and an opening, the opening being sealed by a sealing plate. This non-aqueous electrolyte secondary battery is characterized in that the battery further comprises a current interrupt device activated by rising pressure inside the battery, the bottom surface of the outer can is parallel to the direction of the winding axis of the wound electrode assembly, the thickness of the negative electrode at a state of charge of 100% is equal to or less than 130% of the thickness of the negative electrode at the time of battery assembly, the maximum width of the wound electrode assembly perpendicular to the winding axis direction during assembly is from 90 to 98% of the distance from the bottom surface of the outer can to the current interrupt device, and the battery capacity of the non-aqueous electrolyte secondary battery is equal to or greater than 4 Ah.

    Abstract translation: 提供具有高容量和高安全性的非水电解质二次电池。 本发明是一种非水电解质二次电池,其具有容纳在具有底部和开口的外壳中的正极,负极和隔板的卷绕电极组件,所述开口由密封板密封。 该非水电解质二次电池的特征在于,电池还包括通过电池内部的上升压力而被激活的电流中断装置,外罐的底面平行于卷绕电极组件的卷绕轴线的方向, 充电状态为100%时的负极的厚度等于或小于电池组装时的负极厚度的130%,卷绕电极组件的垂直于卷取轴方向的最大宽度在 组装是从外罐的底面到电流中断装置的距离的90〜98%,非水电解质二次电池的电池容量等于或大于4Ah。

    Manufacture of LiPO2F2 from POF3 or PF5
    48.
    发明申请
    Manufacture of LiPO2F2 from POF3 or PF5 有权
    从POF3或PF5制造LiPO2F2

    公开(公告)号:US20130129595A1

    公开(公告)日:2013-05-23

    申请号:US13813387

    申请日:2011-07-29

    Abstract: LiPO2F2, an electrolyte salt additive for batteries, is manufactured by the reaction of POF3, PF5 or mixtures thereof, with Li3PO4 forming a reaction mixture comprising LiPO2F2. When POF3 is applied, the reaction mixture which contains essentially only LiPO2F2 is preferably extracted from the reaction mixture with a solvent which also is applicable as solvent for lithium ion batteries. If PF5 is applied, then, depending on the molar ratio of PF5 and Li3PO4, the reaction mixture also contains LiF and/or LiPF6. To isolate pure LiPO2F2 from LiF, the reaction mixture containing essentially only LiPO2F2 and LiF may for example, be extracted with dimethoxyethane, acetone, dimethyl carbonate or propylene carbonate. To isolate pure LiPO2F2 from LiPF6, the reaction mixture containing essentially only these constituents is preferably extracted with a solvent which also is applicable as solvent for the LiPF6 in lithium ion batteries to dissolve and remove LiPF6.

    Abstract translation: 用于电池的电解质盐添加剂LiPO2F2是通过POF 3,PF 5或其混合物与形成包含LiPO2F2的反应混合物的Li 3 PO 4的反应制备的。 当使用POF3时,优选仅用LiPO2F2的反应混合物用也可用作锂离子电池的溶剂的溶剂从反应混合物中提取。 如果使用PF5,则根据PF5和Li3PO4的摩尔比,反应混合物还含有LiF和/或LiPF6。 为了从LiF中分离纯LiPO2F2,基本上仅含有LiPO2F2和LiF的反应混合物可以例如用二甲氧基乙烷,丙酮,碳酸二甲酯或碳酸亚丙酯萃取。 为了从LiPF 6中分离纯LiPO2F2,基本上仅含有这些成分的反应混合物优选用溶剂萃取,该溶剂也可用作锂离子电池中的LiPF 6的溶剂以溶解和除去LiPF 6。

Patent Agency Ranking