公开(公告)号：US20190097214A1

公开(公告)日：2019-03-28

申请号：US15936132

申请日：2018-03-26

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Ryuuta YAMAYA ,  Susumu MURATA

IPC: H01M4/36 ,  H01M4/136 ,  H01M4/133 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0525

Abstract: A cathode material for a lithium-ion secondary battery including: active material particles including central particles represented by general formula LixAyDzPO4 (here, A represents at least one element selected from the group consisting of Co, Mn, Ni, Fe, Cu, and Cr, D represents at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, and Y, 0.9

公开(公告)号：US20180097224A1

公开(公告)日：2018-04-05

申请号：US15460749

申请日：2017-03-16

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Ryuuta YAMAYA ,  Susumu MURATA ,  Hirofumi YASUMIISHI

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/58 ,  H01M4/62 ,  H01M4/66

CPC classification number: H01M4/364 ,  H01M4/366 ,  H01M4/5825 ,  H01M4/625 ,  H01M4/661 ,  H01M10/0525 ,  H01M2004/028

Abstract: A cathode material for a lithium-ion secondary battery made of agglomerated particles formed by agglomeration of a plurality of primary particles of a cathode active material represented by General Formula (1) below which are coated with a carbonaceous film, in which, in a case in which a cathode mixture layer including the cathode material, a conductive auxiliary agent, and a binding agent in a weight ratio (the cathode material/the conductive auxiliary agent/the binding agent) of 90:5:5 is calendered on a 30 μm-thick aluminum current collector at a total applied pressure of 5 t/250 mm, a film thickness change percentage of the cathode mixture layer before and after the calendering is 30% or less, LixAyDzPO4  (1).

公开(公告)号：US20180097225A1

公开(公告)日：2018-04-05

申请号：US15461146

申请日：2017-03-16

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Ryuuta YAMAYA ,  Susumu MURATA ,  Satoru OSHITARI ,  Hirofumi YASUMIISHI

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/66 ,  H01M4/58 ,  H01M4/62

CPC classification number: H01M4/366 ,  H01M4/5825 ,  H01M4/625 ,  H01M4/661 ,  H01M10/0525 ,  H01M2004/028

Abstract: A lithium-ion secondary battery including a cathode, an anode, and an electrolyte, in which the cathode includes an aluminum current collector and a cathode mixture layer formed on the aluminum current collector, and an interface resistance value between the cathode mixture layer and the aluminum current collector is 1 Ω·cm2 or less.