公开(公告)号：US20160020487A1

公开(公告)日：2016-01-21

申请号：US14800907

申请日：2015-07-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Takanobu YAMADA ,  Yasuaki MATSUDA ,  Masaki MATSUI ,  Yuichi AIHARA ,  Nobuyuki IMANISHI

IPC: H01M10/0562 ,  H01M4/36 ,  H01M4/136 ,  H01M4/04 ,  H01M4/46 ,  H01M4/38 ,  H01M4/1397 ,  H01M10/0525 ,  H01M4/134

CPC classification number: H01M4/366 ,  H01M4/13 ,  H01M4/131 ,  H01M4/136 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/62 ,  H01M4/622 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2300/0068 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

Abstract: A positive electrode for a lithium ion secondary battery, the positive electrode including: a coated particle including a positive active material particle and a reactive layer on the surface of the positive active material particle; and a sulfide-containing solid electrolyte particle which is in contact with the coated particle, wherein the reactive layer includes a reactive element other than lithium and oxygen, wherein the reactive element has a reactivity with the sulfide-containing solid electrolyte particle which is greater than with a reactivity of the reactive element with a transition metal element included in the positive active material particle, and wherein a ratio of a thickness of the reactive layer to a particle diameter of the positive active material particle is in a range of about 0.0010 to about 0.25.

Abstract translation: 1.一种锂离子二次电池用正极，所述正极具有包含正极活性物质粒子表面的正极活性物质粒子和反应层的被覆粒子， 以及与所述被覆粒子接触的含硫化物的固体电解质粒子，其中，所述反应层包含除了锂和氧以外的反应性元素，其中，所述反应性元素与所述含硫化物的固体电解质粒子的反应性大于 具有反应性元素与包含在正极活性物质颗粒中的过渡金属元素的反应性，并且其中反应性层的厚度与正极活性物质颗粒的粒径之比在约0.0010至约 0.25。

公开(公告)号：US20170179481A1

公开(公告)日：2017-06-22

申请号：US15449092

申请日：2017-03-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Takanobu YAMADA ,  Yasuaki MATSUDA ,  Masaki MATSUI ,  Yuichi AIHARA ,  Nobuyuki IMANISHI

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/131 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1397 ,  H01M10/0562 ,  H01M4/58

CPC classification number: H01M4/366 ,  H01M4/13 ,  H01M4/131 ,  H01M4/136 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/62 ,  H01M4/622 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2300/0068 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

Abstract: A positive electrode for a lithium ion secondary battery, the positive electrode including: a coated particle including a positive active material particle and a reactive layer on the surface of the positive active material particle; and a sulfide-containing solid electrolyte particle which is in contact with the coated particle, wherein the reactive layer includes a reactive element other than lithium and oxygen, wherein the reactive element has a reactivity with the sulfide-containing solid electrolyte particle which is greater than with a reactivity of the reactive element with a transition metal element included in the positive active material particle, and wherein a ratio of a thickness of the reactive layer to a particle diameter of the positive active material particle is in a range of about 0.0010 to about 0.25.