HIGH-CAPACITY CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    6.
    发明申请
    HIGH-CAPACITY CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME 有权
    高容量阴极活性材料和锂二次电池,包括它们

    公开(公告)号:US20130224585A1

    公开(公告)日:2013-08-29

    申请号:US13857340

    申请日:2013-04-05

    Applicant: LG Chem, Ltd.

    Abstract: Provided is a cathode active material including lithium manganese-based oxide, wherein the lithium manganese-based oxide has a layered crystal structure, has a content of manganese (Mn) greater than contents of other transition metal(s), includes 1 mole or more of lithium (Li) with respect to 1 mole of lithium transition metal oxide, has a plateau potential range in which lithium deintercalation as well as oxygen release occurs during initial charging in a high voltage range of 4.4 V or more, has domains included in the layered crystal structure exhibiting electrochemical activity due to a structural change in a potential range of 3.5 V or less after the initial charging, and includes conductive materials for improving electrical conductivity of the lithium manganese-based oxide in a potential range of 3.5 V or less after the initial charging.

    Abstract translation: 本发明提供一种含有锰酸锂氧化物的正极活性物质,其中具有层状晶体结构的锰酸锰氧化物的Mn(Mn)含量大于其它过渡金属的含量,包括1摩尔以上 锂(Li)相对于1摩尔锂过渡金属氧化物的锂离子电池具有在4.4V或更高的高电压范围内的初始充电期间发生锂脱嵌以及氧释放的平台电位范围, 由于在初始充电后的3.5V以下的电位范围内的结构变化而呈现电化学活性的层状晶体结构,并且包括用于提高3.5V以下的电位范围内的锰酸锰系氧化物的导电性的导电性材料 初始充电。

Patent Agency Ranking