公开(公告)号：EP4428939A1

公开(公告)日：2024-09-11

申请号：EP24158899.5

申请日：2024-02-21

申请人： Toyota Jidosha Kabushiki Kaisha

发明人： ITO, Shinichiro

IPC分类号： H01M4/13 ,  H01M4/02

CPC分类号： H01M2004/02120130101 ,  H01M4/13

摘要： A negative electrode (10) comprising a negative electrode current collector (11) and a negative electrode active material layer (12) including a negative electrode active material, wherein the negative electrode active material layer (12) includes a first region (13) and a second region (14), a density of the second region (14) is at least 7% less than a density of the first region (13), and a volume ratio of the second region (14) to the negative electrode active material layer (12) is more than 7% and not more than 50%.

公开(公告)号：EP4427275A1

公开(公告)日：2024-09-11

申请号：EP22802779.3

申请日：2022-10-12

申请人： Pacific Industrial Development Corporation

发明人： TAN, Bing ,  LIAO, Yuhao ,  RAJEWSKI, Andrew ,  WU, Wei

IPC分类号： H01M4/02 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/66 ,  H01M10/052 ,  H01M10/0561 ,  H01M10/056

CPC分类号： H01M2004/02720130101 ,  H01M2004/02820130101 ,  H01M4/02 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/66 ,  H01M10/052 ,  H01M10/056 ,  Y02E60/10

公开(公告)号：EP4080618B1

公开(公告)日：2024-09-11

申请号：EP21803650.7

申请日：2021-03-12

IPC分类号： H01M4/02 ,  H01M4/04 ,  H01M4/13 ,  H01M4/36 ,  H01M4/1391 ,  H01M4/485 ,  H01M10/052 ,  H01M10/0585

CPC分类号： Y02E60/10 ,  H01M4/525 ,  H01M4/505 ,  H01M50/209 ,  H01M50/103 ,  H01M10/0562 ,  H01M4/628 ,  H01M2300/006820130101 ,  H01M2220/2020130101 ,  H01M2004/02820130101 ,  H01M4/366 ,  H01M4/36 ,  H01M4/62 ,  H01M4/5815 ,  H01M10/0585 ,  H01M4/13 ,  H01M4/1391 ,  H01M4/131 ,  H01M4/136 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/02120130101 ,  H01M10/052 ,  H01M4/485 ,  H01M4/0404

公开(公告)号：EP3930037B1

公开(公告)日：2024-09-11

申请号：EP21182196.2

申请日：2021-06-28

IPC分类号： H01M4/04 ,  H01M4/139 ,  H01M4/36 ,  H01M4/62 ,  H01M4/66 ,  H01M4/38 ,  H01M4/02

CPC分类号： H01M4/0414 ,  H01M4/661 ,  H01M4/622 ,  H01M2004/02120130101 ,  H01M4/139 ,  H01M4/366 ,  H01M4/382 ,  H01M4/381 ,  H01M2300/006520130101 ,  H01M4/62 ,  H01M2004/02720130101 ,  H01M2004/02820130101 ,  Y02E60/10

公开(公告)号：EP3869584B1

公开(公告)日：2024-09-11

申请号：EP21156307.7

申请日：2021-02-10

IPC分类号： H01M4/04 ,  H01M4/1393 ,  H01M10/0585 ,  H01M4/133 ,  H01M4/36 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/02

CPC分类号： H01M10/0562 ,  H01M10/0525 ,  H01M4/366 ,  H01M4/587 ,  H01M4/133 ,  H01M4/0407 ,  H01M4/0471 ,  H01M2004/02720130101 ,  H01M4/1393 ,  H01M10/0585 ,  Y02P70/50 ,  Y02E60/10

公开(公告)号：EP3780221B1

公开(公告)日：2024-09-11

申请号：EP19776980.5

申请日：2019-02-27

IPC分类号： H01M10/0525 ,  H01M4/131 ,  H01M10/0566 ,  H01M4/587 ,  H01M10/04 ,  H01M50/119 ,  H01M50/121 ,  H01M50/124 ,  H01M50/133 ,  H01M50/414 ,  H01M50/417 ,  H01M50/429 ,  H01M50/44 ,  H01M50/463 ,  H01M4/525 ,  H01M10/0585 ,  H01M4/02

CPC分类号： H01M10/0525 ,  Y02E60/10 ,  H01M4/525 ,  H01M10/0585 ,  H01M2004/02120130101 ,  H01M2220/3020130101 ,  H01M50/124 ,  H01M50/4295 ,  H01M50/44 ,  Y02P70/50 ,  H01M50/429 ,  H01M50/417 ,  H01M50/133 ,  H01M50/121 ,  H01M50/463 ,  H01M50/414 ,  H01M50/119 ,  H01M4/587 ,  H01M2004/02720130101 ,  H01M2004/02820130101 ,  H01M10/0436

公开(公告)号：EP4425611A1

公开(公告)日：2024-09-04

申请号：EP22912022.5

申请日：2022-12-23

申请人： LG Energy Solution, Ltd.

发明人： JO, Chi Ho ,  JUNG, Wang Mo ,  YOO, Tae Gu ,  HWANG, Jin Tae ,  JUNG, Hae Jung ,  HEO, Jong Wook ,  CHO, Hyeon Jin

IPC分类号： H01M4/38 ,  H01M4/36 ,  H01M10/052 ,  H01M10/625 ,  H01M10/627 ,  H01M4/02

CPC分类号： Y02E60/10 ,  H01M4/36 ,  H01M10/052 ,  H01M4/131 ,  H01M10/0525 ,  H01M4/364 ,  C01G53/50 ,  C01G53/00 ,  H01M2004/02820130101 ,  H01M4/505 ,  H01M4/525 ,  H01M4/366 ,  H01M2004/02120130101

摘要： The present invention relates to a positive electrode active material including a lithium composite transition metal oxide in the form of at least one of single particles or pseudo-single particles, wherein each single particle consists of one nodule, and each pseudo-single particle is a composite of 30 or fewer nodules, wherein the lithium composite transition metal oxide includes Ni, Co, Mn, and Al, wherein a molar ratio of the number of moles of Ni to the total number of moles of all metal elements except lithium is 0.83 to less than 1, a molar ratio of the number of moles of Co to the number of moles of Mn is 0.5 to less than 1, and a molar ratio ratio of the number of moles of Co to the number of moles of Al is 5 to 15.

公开(公告)号：EP4425587A2

公开(公告)日：2024-09-04

申请号：EP24189143.1

申请日：2020-09-28

申请人： LG Energy Solution, Ltd.

发明人： YUN, Hyun Woong ,  KIM, Yong Jun ,  CHOI, Soon Hyung ,  KIM, Tae Gon ,  HAH, Hoe Jin

IPC分类号： H01M4/02

CPC分类号： H01M4/131 ,  H01M4/625

摘要： The present invention relates to an electrode and a secondary battery including the same, the electrode including an electrode active material layer, the electrode active material layer including an electrode active material and a conductive agent, the conductive agent including: a point-type conductive agent; and a carbon nanotube structure in which 2 to 5,000 single-walled carbon nanotube units are bonded to each other, wherein the carbon nanotube structure has an average length of 1 um to 500 um, and the carbon nanotube structure is contained in the electrode active material layer in an amount of 0.01 wt% to 5.0 wt%.

公开(公告)号：EP4421910A1

公开(公告)日：2024-08-28

申请号：EP23868422.9

申请日：2023-08-29

申请人： LG Energy Solution, Ltd.

发明人： KIM, Jeonggil ,  KWON, Hyejin ,  KIM, Sohee ,  KIM, Taegon ,  KIM, Myeongsoo ,  KIM, Ki Tae ,  LEE, Choonghyeon

IPC分类号： H01M4/36 ,  H01M4/62 ,  H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  H01M10/052 ,  H01M4/02

CPC分类号： Y02E60/10 ,  H01M4/02 ,  H01M10/052 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/131

摘要： An electrode for an all-solid-state battery is provided. The electrode comprises granules including a core containing an active material, a first conductive material and a binder, and a coating layer containing a solid electrolyte and a second conductive material disposed in contact with an outside of the core. According to one embodiment of the present invention, the first and second conductive materials have different sizes or shapes. The first conductive material has an aspect ratio of 4000 to 6000 and a BET specific surface area of 100 m2/g to 300 m2/g. The second conductive material has an aspect ratio of 100 to 300 and a BET specific surface area of 10 m2/g to 30 m2/g. The granules form an excellent electrical network in the interior of the granules even under the all-solid-state conditions, which contributes to the improvement of the battery performance when applied as an electrode for an all-solid-state battery.

公开(公告)号：EP4421903A1

公开(公告)日：2024-08-28

申请号：EP21961520.0

申请日：2021-11-17

申请人： Chang Sung Co.

发明人： LEE, Tae Kyung ,  YANG, Seung Nam ,  CHOI, Nam Kyu

IPC分类号： H01M4/36 ,  H01M4/38 ,  H01M4/62 ,  H01M10/052 ,  B22F9/08 ,  H01M50/109 ,  H01M4/02

CPC分类号： Y02E60/10 ,  B22F9/08 ,  H01M4/02 ,  H01M4/36 ,  H01M4/38 ,  H01M4/62 ,  H01M10/052 ,  H01M50/109

摘要： An embodiment of the present invention provides: a negative electrode active material for a lithium secondary battery, wherein the negative electrode active material has silicon nanoparticles distributed in a silicon alloy and contains a Si-Al-Ni-B composition; and a method for producing same. Accordingly, a negative electrode active material for a lithium secondary battery can be provided, wherein the negative electrode active material has a controlled volume expansion rate and excellent electrical properties.