NONAQUEOUS ELECTROLYTE FOR SECONDARY BATTERY AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY EMPLOYING THE SAME
    91.
    发明公开
    NONAQUEOUS ELECTROLYTE FOR SECONDARY BATTERY AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY EMPLOYING THE SAME 有权
    非水电解质的二次电池和二次电池的非水电解质

    公开(公告)号:EP2940779A1

    公开(公告)日:2015-11-04

    申请号:EP15166034.7

    申请日:2008-04-04

    摘要: An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties.

    摘要翻译: 一个目的是提供一种非水电解质和具有优异的放电负载特性,并具有优异的高温保存特性的非水电解质二次电池中,循环特性,高的容量,连续充电特性,保存性,气体逸出连续充电时抑制 高电流密度充/放电特性,放电负载特性等的目的已经实现与非水电解液,其包含:一个单氟磷酸盐和/或difluorophosphates; 并且还具有特定化学结构或特定性质的化合物。

    LITHIUM SECONDARY BATTERY
    99.
    发明公开
    LITHIUM SECONDARY BATTERY 有权
    锂ZWEITBATTERIE

    公开(公告)号:EP2466678A2

    公开(公告)日:2012-06-20

    申请号:EP10808336.1

    申请日:2010-08-10

    申请人: LG Chem, Ltd.

    发明人: YU, Sung-Hoon

    摘要: A lithium secondary battery includes a cathode, an anode, a separator interposed between the cathode and the anode, and a non-aqueous electrolytic solution obtained by dissolving lithium salt to a non-aqueous solvent. The separator includes a porous substrate having pores; and a porous coating layer located on at least one surface of the porous substrate and having inorganic particles and a binder polymer, the inorganic particles being connected and fixed to each other by means of the binder polymer, the porous coating layer having pores therein formed by interstitial volumes among the inorganic particles. The non-aqueous solvent is a high-viscous non-aqueous solvent having a viscosity of 1.4 cP or above at 25°C. This lithium secondary battery gives improved safety and excellent charging/discharging characteristics since it has the high-viscous non-aqueous solvent and the separator with good wettability against the solvent.

    摘要翻译: 锂二次电池包括阴极,阳极,介于阴极和阳极之间的隔膜以及将锂盐溶解在非水溶剂中而得到的非水电解液。 分离器包括具有孔的多孔基材; 以及位于所述多孔基材的至少一个表面上且具有无机颗粒和粘合剂聚合物的多孔涂层,所述无机颗粒通过所述粘合剂聚合物彼此连接和固定,所述多孔涂层在其中形成有孔, 无机颗粒间的间隙体积。 非水溶剂是在25℃下粘度为1.4cP以上的高粘度非水溶剂。 该锂二次电池具有改进的安全性和优异的充电/放电特性,因为它具有高粘度非水溶剂和对溶剂具有良好润湿性的隔膜。