公开(公告)号：US20200020924A1

公开(公告)日：2020-01-16

申请号：US16580206

申请日：2019-09-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hideharu Takezawa ,  Daisuke Furusawa ,  Yuji Oura ,  Takahiro Takahashi ,  Takahito Nakayama ,  Tomoki Shiozaki

IPC: H01M2/32 ,  H01M4/131 ,  H01M4/46 ,  H01M4/48 ,  H01M4/62

Abstract: A positive electrode is disclosed including a positive electrode collector containing aluminum, a positive electrode mixture layer containing a positive electrode active substance constituted from a lithium transition metal oxide, and a protective layer provided between the positive electrode collector and the positive electrode mixture layer. The protective layer contains inorganic compound particles and a conductive material, and has a recessed structure wherein the positive electrode mixture layer is recessed into the protective layer.

公开(公告)号：US20150270577A1

公开(公告)日：2015-09-24

申请号：US14441339

申请日：2013-12-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hideharu Takezawa

IPC: H01M10/0569 ,  H01M4/38 ,  H01M4/56 ,  H01M4/525 ,  H01M4/505 ,  H01M10/052 ,  H01M10/0567

CPC classification number: H01M10/0569 ,  H01M4/386 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/56 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0568 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/0034 ,  H01M2300/0037 ,  Y02T10/7011

Abstract: A lithium secondary battery includes: a positive electrode including Li—ComM1-mOn (M represents at least one element selected from the group consisting of Na, Mg, Sc, Y, Mn, Fe, Co, Ni, Cu, Zn, Al, Cr, Pb, Sb and B, where 0≦x≦1.2, 0.9≦m≦1.0, 2.0≦n≦2.3); a negative electrode capable of absorbing/desorbing lithium; a separator arranged between the positive electrode and the negative electrode; and a nonaqueous electrolyte solution including fluoroethylene carbonate, a carbonate other than fluoroethylene carbonate, a compound having an isocyanate group, and lithium difluorophosphate.

Abstract translation: 锂二次电池包括：包含Li-ComM1-mOn的正极（M表示选自Na，Mg，Sc，Y，Mn，Fe，Co，Ni，Cu，Zn，Al， Cr，Pb，Sb和B，其中0＆nlE; x＆nlE; 1.2,0.9＆nlE; m＆nlE; 1.0,2.0＆nlE; n＆nlE; 2.3）; 能够吸收/解吸锂的负极; 设置在所述正极和所述负极之间的隔膜; 以及包含氟代亚乙基碳酸酯，除氟代碳酸亚乙酯之外的碳酸酯，具有异氰酸酯基的化合物和二氟磷酸锂的非水电解质溶液。