公开(公告)号：US20150180019A1

公开(公告)日：2015-06-25

申请号：US14635182

申请日：2015-03-02

Applicant: KNU-INDUSTRY COOPERATION FOUNDATION

Inventor： Sung-man LEE ,  Jong-hyuk LEE

IPC: H01M4/04 ,  H01M4/38 ,  H01M4/587 ,  H01M4/36 ,  H01M4/134 ,  H01M4/133

CPC classification number: H01M4/38 ,  H01M4/133 ,  H01M4/134 ,  H01M4/364 ,  H01M4/366 ,  H01M4/386 ,  H01M4/387 ,  H01M4/587 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54

Abstract: The present invention relates to a negative active material for a rechargeable lithium battery, a method of manufacturing the negative active material, and a rechargeable lithium battery including the negative active material. The negative active material includes a first graphite particle including graphite pieces; and at least one second particle selected from the group consisting of an element particle, an element compound particle, a composite particle, and a carbon composite particle, and a combination particle thereof, wherein the element particle, the element compound particle, the composite particle, and the carbon composite particle are selected from the group consisting of Si, Sn, Al, Ge, Pb, and combinations thereof; wherein each of the graphite pieces has a thickness ranging from 0.01 μm to 0.1 μm and the graphite pieces are linked to one another forming a curved side; and wherein the at least one second particle is dispersed between the graphite pieces.

Abstract translation: 本发明涉及一种用于可再充电锂电池的负极活性材料，负极活性材料的制造方法以及包含负极活性材料的可再充电锂电池。 负极活性物质包括包含石墨片的第一石墨粒子; 以及选自元素粒子，元素化合物粒子，复合粒子，碳复合粒子等的至少一种第二粒子及其组合粒子，其中，元素粒子，元素化合物粒子，复合粒子 ，碳复合粒子选自Si，Sn，Al，Ge，Pb及其组合; 其中每个石墨片具有0.01μm至0.1μm的厚度，并且所述石墨片彼此连接形成弯曲侧; 并且其中所述至少一个第二颗粒分散在所述石墨片之间。