公开(公告)号：EP4439738A1

公开(公告)日：2024-10-02

申请号：EP23903812.8

申请日：2023-11-23

Applicant: LG Energy Solution, Ltd.

Inventor： LEE, Jong Yoon ,  HONG, Sukhyun ,  HAN, Suenghoon ,  HONG, Kyungsik ,  NOH, Jaekyo ,  KIM, Hyeon Jin

IPC: H01M4/70 ,  H01M4/134 ,  H01M4/38 ,  H01M4/66 ,  H01M10/052 ,  H01M4/02

CPC classification number: Y02E60/10 ,  H01M4/02 ,  H01M10/052 ,  H01M4/38 ,  H01M4/70 ,  H01M4/134 ,  H01M4/66

Abstract: The present invention relates to a negative electrode for a lithium secondary battery and a lithium secondary battery comprising the same.

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

Applicant: Pacific Industrial Development Corporation

Inventor： TAN, Bing ,  LIAO, Yuhao ,  RAJEWSKI, Andrew ,  WU, Wei

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

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

公开(公告)号：EP4425628A1

公开(公告)日：2024-09-04

申请号：EP22886917.8

申请日：2022-10-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： OTO, Takashi ,  FUJIMOTO, Masahisa

IPC: H01M10/052 ,  H01M4/131 ,  H01M4/134 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/66 ,  H01M10/0562 ,  H01M10/0566

CPC classification number: Y02E60/10 ,  H01M10/052 ,  H01M10/0566 ,  H01M4/505 ,  H01M4/38 ,  H01M4/525 ,  H01M4/134 ,  H01M10/0562 ,  H01M4/66 ,  H01M4/131

Abstract: A battery 1000 according to the present disclosure includes a positive electrode 103, a negative electrode 101, and an electrolyte layer 102 positioned between the positive electrode 103 and the negative electrode 101. The positive electrode 103 includes a positive electrode active material layer 106. The positive electrode active material layer 106 includes a composite oxide represented by composition formula (1): LiaNibMecO2d. In the composition formula (1), a satisfies 0.8 ≤ a ≤ 1.2, b satisfies 0.5 ≤ b ≤ 1.0, c satisfies 0 ≤ c ≤ 0.6, d satisfies 0

公开(公告)号：EP4411899A1

公开(公告)日：2024-08-07

申请号：EP22949732.6

申请日：2022-07-05

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： QIN, Meng ,  GUAN, Yingjie ,  MA, Qingyan ,  YANG, Huiling ,  WEN, Yan ,  HUANG, Qisen

IPC: H01M4/66 ,  H01M10/056

CPC classification number: H01M10/056 ,  H01M4/66 ,  Y02E60/10

Abstract: Provided is a secondary battery including a positive electrode plate, a negative electrode plate, and an electrolyte. The positive electrode plate includes a positive current collector and a positive active material layer arranged on the positive current collector, and the positive active material layer contains a sodium ion active material. The negative electrode plate includes a negative current collector and a metal film layer arranged on at least one surface of the negative current collector. A nucleation overpotential of sodium on the negative electrode plate is smaller than or equal to 35 mV The electrolyte is arranged between the positive electrode plate and the negative electrode plate, and the electrolyte contains a sodium borate.

公开(公告)号：EP4394951A1

公开(公告)日：2024-07-03

申请号：EP22861520.9

申请日：2022-06-13

Applicant: NEXTERIALS CO., LTD.

Inventor： SHIN, Hyeon Suk ,  KIM, Min Su

IPC: H01M4/66 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/04 ,  H01M4/40 ,  H01M4/38 ,  H01M10/052 ,  H01M12/08

CPC classification number: Y02E60/10 ,  C23C16/34 ,  C23C28/00 ,  C23C28/04 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/40 ,  H01M4/38 ,  H01M4/66 ,  H01M10/052 ,  H01M12/08

Abstract: The present invention relates to an anode current collector and a metal battery comprising same, and, more specifically, to an anode current collector and a metal battery comprising same, the anode current collector comprising: a current collector substrate; an amorphous boron nitride layer formed on at least one portion of the current collector substrate; and a metal-containing layer formed on at least one portion of the amorphous boron nitride layer.

公开(公告)号：EP4379853A1

公开(公告)日：2024-06-05

申请号：EP23749979.3

申请日：2023-02-03

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： JOO, Mun Kyu ,  LEE, Ilha ,  KIM, Sarah ,  JEON, Seoyoung ,  KWON, Yohan ,  CHAE, Jonghyun

IPC: H01M4/134 ,  H01M4/04 ,  H01M4/62 ,  H01M10/052 ,  H01M4/02

CPC classification number: Y02E60/10 ,  H01M4/02 ,  H01M10/052 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/134 ,  H01M4/66 ,  H01M4/1395

Abstract: Disclosed is a manufacturing method of a negative electrode for a lithium secondary battery, a negative electrode for a lithium secondary battery, and a lithium secondary battery including a negative electrode.

公开(公告)号：EP4376130A1

公开(公告)日：2024-05-29

申请号：EP22890492.6

申请日：2022-11-08

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： LEE, Yun-Ju ,  RYU, Duk-Hyun ,  LEE, Kwan-Hee ,  KIM, Sue-Jin ,  PARK, Geun-Ho ,  SON, Seung-Yeon ,  JANG, Jin-Su

IPC: H01M4/66 ,  H01M4/131 ,  H01M4/70 ,  H01M10/0587 ,  H01M50/533 ,  H01M50/538 ,  H01M50/107 ,  H01M50/167 ,  H01M50/213

CPC classification number: Y02E60/10 ,  Y02P70/50 ,  H01M10/0587 ,  H01M4/13 ,  H01M50/213 ,  H01M50/533 ,  H01M50/167 ,  H01M4/70 ,  H01M50/107 ,  H01M50/538 ,  H01M4/66 ,  H01M4/131

Abstract: The present disclosure discloses a current collector for a secondary battery. The current collector for a secondary battery is characterized in that an elongation is 1.5 to 3.0% and a tensile strength is 25 to 35 kgf/mm2. According to the present disclosure, since the elongation and tensile strength of the current collector are optimally set, the camber length is lowered to less than 20 mm when manufacturing the electrode plate, and there is no meandering or breaking defects during the jelly-roll winding process.

公开(公告)号：EP3719876B1

公开(公告)日：2024-05-29

申请号：EP18932316.5

申请日：2018-11-26

IPC: H01M4/13 ,  H01M4/66 ,  H01M4/70 ,  H01M4/04 ,  H01M4/02 ,  H01M10/04 ,  H01M50/531

CPC classification number: H01M4/02 ,  H01M4/13 ,  H01M4/667 ,  H01M4/668 ,  H01M4/0404 ,  H01M50/531 ,  H01M50/536 ,  H01M4/66 ,  H01M4/70 ,  H01M4/043 ,  Y02E60/10

公开(公告)号：EP4366017A1

公开(公告)日：2024-05-08

申请号：EP22832905.8

申请日：2022-06-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： UCHIYAMA, Yohei

IPC: H01M10/052 ,  H01M4/66 ,  H01M10/0569 ,  H01M50/46 ,  H01M50/489

CPC classification number: Y02E60/10 ,  H01M10/052 ,  H01M50/489 ,  H01M10/0569 ,  H01M50/46 ,  H01M4/66

Abstract: Disclosed is a lithium secondary battery (10) including a positive electrode (11) containing a positive electrode active material capable of absorbing and releasing lithium ions, a negative electrode (12) including a negative electrode current collector, a separator (13) disposed between the positive electrode (11) and the negative electrode (12), and a nonaqueous electrolyte having lithium ion conductivity. At the negative electrode, lithium metal deposits during charging, and the lithium metal dissolves during discharging. The negative electrode current collector includes an austenitic stainless steel.

公开(公告)号：EP4366001A1

公开(公告)日：2024-05-08

申请号：EP22832904.1

申请日：2022-06-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： UCHIYAMA, Yohei

IPC: H01M4/66 ,  H01M10/052 ,  H01M10/0569 ,  H01M50/489

CPC classification number: Y02E60/10 ,  H01M10/052 ,  H01M50/489 ,  H01M10/0569 ,  H01M4/66

Abstract: Disclosed is a lithium secondary battery (10) including a positive electrode (11) containing a positive electrode active material capable of absorbing and releasing lithium ions, a negative electrode (12) including a negative electrode current collector, a separator (13) disposed between the positive electrode (11) and the negative electrode (12), and a nonaqueous electrolyte having lithium ion conductivity. At the negative electrode, lithium metal deposits during charging, and the lithium metal dissolves during discharging. The oxygen content in the negative electrode current collector is 50 ppm or less, and the negative electrode current collector has a breaking strength of 300 MPa or less and has a breaking elongation of 4% or more.