Anode active material for lithium secondary battery, method for preparing the same and lithium secondary battery comprising the same

    公开(公告)号:US10283762B2

    公开(公告)日:2019-05-07

    申请号:US12528064

    申请日:2009-05-26

    摘要: Provided are an anode active material for a lithium secondary battery, a method of preparing the same and a lithium secondary battery comprising the same. The anode active material for a lithium secondary battery includes a carbonaceous material core; and a shell formed outside of the carbonaceous material core. The shell includes a plurality of spinel-type lithium titanium oxide particles, and a plurality of metal oxide particles, wherein the metal belongs to group 4 or 13 of the periodic table, the metal oxide particles filling voids formed by the carbonaceous material and the plurality of spinel-type lithium titanium oxide particles. The anode active material for a lithium secondary battery has the metal oxide shell, and thus has the improved conductivity, a high output density, and consequently excellent electrical characteristics. The lithium secondary battery manufactured using the anode active material ensures safety sufficiently.

    LITHIUM SECONDARY BATTERY
    4.
    发明申请
    LITHIUM SECONDARY BATTERY 有权
    锂二次电池

    公开(公告)号:US20140087233A1

    公开(公告)日:2014-03-27

    申请号:US14094265

    申请日:2013-12-02

    IPC分类号: H01M2/16

    摘要: The present invention relates to a lithium secondary battery. More specifically, according to embodiments of the present invention the lithium battery, which includes a cathode, an anode, and a separate membrane inserted between the cathode and the anode, is characterized in that the separator membrane is a polyolefin porous membrane which has an aramid coating layer; and the cathode includes a lithium metal oxide cathode active material which has an olivine-type iron phosphate lithium coating layer, or the anode includes a carbon anode active material which has a spinel-type lithium titanium oxide coating layer. The lithium secondary battery in accordance with embodiments of the present invention has excellent basic electric performance and improved stability.

    摘要翻译: 锂二次电池技术领域本发明涉及锂二次电池。 更具体地,根据本发明的实施例,包括阴极,阳极和插入在阴极和阳极之间的单独膜的锂电池的特征在于隔膜是具有芳族聚酰胺的聚烯烃多孔膜 涂层; 并且阴极包括具有橄榄石型磷酸铁锂涂层的锂金属氧化物正极活性物质,或者阳极包括具有尖晶石型锂钛氧化物被覆层的碳负极活性物质。 根据本发明的实施方案的锂二次电池具有优异的基本电性能和改进的稳定性。

    ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING THE SAME AND LITHIUIM SECONDARY BATTERY COMPRISING THE SAME

    公开(公告)号:US20190088936A1

    公开(公告)日:2019-03-21

    申请号:US12528064

    申请日:2009-05-26

    摘要: Provided are an anode active material for a lithium secondary battery, a method of preparing the same and a lithium secondary battery comprising the same. The anode active material for a lithium secondary battery includes a carbonaceous material core; and a shell formed outside of the carbonaceous material core. The shell includes a plurality of spinel-type lithium titanium oxide particles, and a plurality of metal oxide particles, wherein the metal belongs to group 4 or 13 of the periodic table, the metal oxide particles filling voids formed by the carbonaceous material and the plurality of spinel-type lithium titanium oxide particles. The anode active material for a lithium secondary battery has the metal oxide shell, and thus has the improved conductivity, a high output density, and consequently excellent electrical characteristics. The lithium secondary battery manufactured using the anode active material ensures safety sufficiently.

    Separator for lithium secondary battery and lithium secondary battery comprising the same
    7.
    发明授权
    Separator for lithium secondary battery and lithium secondary battery comprising the same 有权
    锂二次电池用分离器和包含该锂二次电池的锂二次电池

    公开(公告)号:US09196884B2

    公开(公告)日:2015-11-24

    申请号:US13469866

    申请日:2012-05-11

    IPC分类号: H01M10/052 H01M2/16 H01M2/14

    摘要: Disclosed is a separator for a lithium secondary battery and a lithium secondary battery comprising the same. The separator may include a thermoplastic polyolefin-based polymer porous sheet and an aramid-based non-woven fabric sheet stacked on at least one surface of the polyolefin-based polymer porous sheet, wherein the polyolefin-based polymer sheet and the aramid-based non-woven fabric sheet are adhered with an adhesive, and the adhesive loses an adhesive performance at 80° C. or more to separate the two sheets. The separator has a shut-down function and excellent high-temperature shape stability.

    摘要翻译: 公开了一种锂二次电池用隔膜和具备该二次电池的锂二次电池。 隔板可以包括热塑性聚烯烃基聚合物多孔片和堆叠在聚烯烃基聚合物多孔片的至少一个表面上的芳族聚酰胺类非织造布片,其中聚烯烃基聚合物片和芳族聚酰胺类非织造布 用粘合剂粘合编织织物片,并且粘合剂在80℃以上失去粘合性能以分离两片。 分离器具有关闭功能和优异的高温形状稳定性。

    Lithium secondary battery
    9.
    发明授权
    Lithium secondary battery 有权
    锂二次电池

    公开(公告)号:US09252413B2

    公开(公告)日:2016-02-02

    申请号:US14094265

    申请日:2013-12-02

    摘要: The present invention relates to a lithium secondary battery. More specifically, according to embodiments of the present invention the lithium battery, which includes a cathode, an anode, and a separate membrane inserted between the cathode and the anode, is characterized in that the separator membrane is a polyolefin porous membrane which has an aramid coating layer; and the cathode includes a lithium metal oxide cathode active material which has an olivine-type iron phosphate lithium coating layer, or the anode includes a carbon anode active material which has a spinel-type lithium titanium oxide coating layer. The lithium secondary battery in accordance with embodiments of the present invention has excellent basic electric performance and improved stability.

    摘要翻译: 锂二次电池技术领域本发明涉及锂二次电池。 更具体地,根据本发明的实施例,包括阴极,阳极和插入在阴极和阳极之间的单独膜的锂电池的特征在于隔膜是具有芳族聚酰胺的聚烯烃多孔膜 涂层; 并且阴极包括具有橄榄石型磷酸铁锂涂层的锂金属氧化物正极活性物质,或者阳极包括具有尖晶石型锂钛氧化物被覆层的碳负极活性物质。 根据本发明的实施方案的锂二次电池具有优异的基本电性能和改进的稳定性。

    HIGH HEAT RESISTANCE COMPOSITE SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING SAME
    10.
    发明申请
    HIGH HEAT RESISTANCE COMPOSITE SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING SAME 审中-公开
    用于锂二次电池的高耐热复合分离器和包括其的锂二次电池

    公开(公告)号:US20140370358A1

    公开(公告)日:2014-12-18

    申请号:US14364415

    申请日:2012-02-13

    IPC分类号: H01M2/16 H01M10/42

    摘要: Disclosed is a high heat resistance composite separator including a porous substrate having a plurality of pores, an inorganic coating layer formed on one surface of the porous substrate, the inorganic coating layer including a plurality of inorganic particles and a binder polymer disposed on a portion or all of surfaces of the inorganic particles to connect and bind the inorganic particles, and a high heat resistance polymer coating layer formed on the other surface of the porous substrate, the high heat resistance polymer coating layer including a high heat resistance polymer and inorganic particles dispersed in the high heat resistance polymer.

    摘要翻译: 公开了一种高耐热复合隔膜,其包括具有多个孔的多孔基材,形成在多孔基材的一个表面上的无机涂层,无机涂层包括多个无机颗粒和粘合剂聚合物, 无机颗粒的所有表面连接和结合无机颗粒,以及形成在多孔基材的另一个表面上的高耐热聚合物涂层,包含高耐热聚合物和分散的无机颗粒的高耐热性聚合物涂层 在高耐热聚合物中。