公开(公告)号：EP4329080A1

公开(公告)日：2024-02-28

申请号：EP22799177.5

申请日：2022-05-09

申请人： LG Chem, Ltd.

发明人： HAN, Sung-Jae ,  LEE, Joo-Sung ,  MUN, Sung Cik

IPC分类号： H01M50/489 ,  H01M50/417 ,  H01M50/451 ,  H01M10/052 ,  H01M50/46

摘要： The present disclosure relates to a crosslinked structure-containing polyolefin porous support which has a crosslinked structure including polymer chains interconnected directly with one another, wherein a first peak is detected at a g value of 2.010-2.030 as determined by electron spin resonance spectroscopy by irradiating ultraviolet rays thereto at 500 W. The present disclosure also relates to a crosslinked structure-containing separator for a lithium secondary battery including the crosslinked structure-containing polyolefin porous support, and a lithium secondary battery including the separator. The crosslinked structure-containing polyolefin porous support shows excellent heat resistance.

公开(公告)号：EP3370277B1

公开(公告)日：2024-02-21

申请号：EP16859262.4

申请日：2016-10-07

发明人： MARUHASHI, Yutaka ,  AKIIKE, Junnosuke

IPC分类号： H01M50/417 ,  H01M50/449 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M10/0565 ,  C09J133/26 ,  C08L33/12 ,  H01M10/0587 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/587

公开(公告)号：EP4280367A3

公开(公告)日：2024-01-24

申请号：EP23199312.2

申请日：2020-09-11

申请人： Asahi Kasei Kabushiki Kaisha

发明人： KAMINE, Hirokazu ,  MATSUOKA, Naoki ,  ITO, Makoto ,  ZHANG, Xun

IPC分类号： H01M4/58 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/417 ,  H01M50/423 ,  H01M50/434 ,  H01M50/44 ,  H01M50/443 ,  H01M50/449 ,  H01M50/451 ,  H01M50/454 ,  H01M50/457 ,  H01M50/489

摘要： A nonaqueous electrolyte solution comprising:
a nonaqueous solvent containing 5% by volume or more and 97% by volume or less of acetonitrile, and
a lithium salt containing LiFSO 3 in an amount of 200 ppm by weight or less based on the total amount of the nonaqueous electrolyte solution.

公开(公告)号：EP3882384B1

公开(公告)日：2024-01-03

申请号：EP19884992.9

申请日：2019-11-05

发明人： KAWANO Akihiko ,  TANAKA Masanao

IPC分类号： D04H1/4291 ,  D04H1/4382 ,  D04H1/541 ,  H01G9/02 ,  H01G11/52 ,  H01M50/417 ,  H01M50/489 ,  H01M50/494 ,  B01D39/16

公开(公告)号：EP4243182A3

公开(公告)日：2023-11-15

申请号：EP23182797.3

申请日：2021-04-13

申请人： Asahi Kasei Kabushiki Kaisha

发明人： ZHANG, Xun ,  MATSUYAMA, Hayato ,  NAKAO, Tetsushi

IPC分类号： C08J9/26 ,  H01G11/52 ,  H01G11/84 ,  H01M50/409 ,  C08J5/18 ,  H01G9/02 ,  H01M50/403 ,  H01M50/417 ,  H01M50/489

摘要： A separator for a power storage device comprising a microporous membrane, wherein:
the microporous membrane comprises polyethylene and polypropylene, and
in wide-angle X-ray scattering (WAXS) analysis of the microporous membrane, the crystallite size of the polyethylene, determined as described in the specification, is 15 nm to 40 nm and the crystallite size of the polypropylene, determined as described in the specification, is 10 nm to 50 nm.

公开(公告)号：EP3656009B1

公开(公告)日：2023-11-15

申请号：EP18834620.9

申请日：2018-07-17

发明人： MOGANTY, Surya, S. ,  ABBATE, Luigi ,  TORRES, Gabriel ,  SINICROPI, John ,  BROWN, Kevin ,  WU, Yue

IPC分类号： C07D251/30 ,  H01G9/20 ,  H01G11/06 ,  H01G11/58 ,  H01G11/64 ,  H01M6/16 ,  H01M10/052 ,  H01M10/054 ,  H01M10/0567 ,  H01M50/417 ,  H01M50/491 ,  H01G11/30 ,  H01G11/46 ,  H01G11/52 ,  H01G11/60 ,  H01G11/62 ,  H01M10/0568 ,  H01M10/0569

公开(公告)号：EP4235939A3

公开(公告)日：2023-11-01

申请号：EP23176153.7

申请日：2019-10-11

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Zhang, Xun ,  Kuroki, Ryo ,  Fukunaga, Yuki ,  Kobayashi, Hiromi ,  Saito, Mitsuko

IPC分类号： H01M50/403 ,  H01M50/449 ,  H01M50/446 ,  H01M50/417 ,  C08J3/24 ,  C08J9/36 ,  H01G11/52 ,  H01M10/052 ,  H01M10/0566 ,  H01M10/0585 ,  H01M10/0587 ,  C08J9/28 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/0568 ,  H01M50/411 ,  H01M50/406 ,  H01M50/489 ,  H01M50/491 ,  H01M50/494

摘要： A separator for an electricity storage device, which comprises:
a microporous membrane that includes a silane-modified polyolefin and
an inorganic porous layer that includes inorganic particles and a resin binder, disposed on at least one surface of the microporous membrane.

公开(公告)号：EP4265670A1

公开(公告)日：2023-10-25

申请号：EP21905156.2

申请日：2021-09-14

申请人： Shanghai Energy New Materials Technology Co., Ltd.

发明人： CHENG, Yue ,  GONG, Xiaoming ,  PENG, Kun ,  YU, Shaobo ,  ZHUANG, Zhi

IPC分类号： C08J5/18 ,  C08L23/06 ,  C08J9/26 ,  H01M50/403 ,  H01M50/417

摘要： The present invention relates to the field of battery separators. Specifically, disclosed is a polyolefin microporous membrane of which the membrane thickness is 2-30 µm, the puncture strength is 1000-2000 gf, the tensile strength in direction MD is 3200-5000 kgf/cm 2 , the tensile strength in direction TD is 2800-4800 kgf/cm 2 , the porosity is 40% to 57%, the maximum pore diameter is 33-48 nm, the gas permeation rate is 10-400 s/100 mL, the impedance is 0.3-0.9 Ω/cm 2 , a manufacturing system therefor, a coated separator using the base membrane, and an electrochemical apparatus. The polyolefin microporous membrane of the present invention is provided with excellent properties and, with the thickness, tensile strength, puncture strength, air permeability, porosity, and thermal shrinkage thereof satisfying applications having high requirements on the thickness and mechanical strength of the microporous membrane, is very suitable for use in the field of power lithium-ion battery separators.

公开(公告)号：EP4254602A2

公开(公告)日：2023-10-04

申请号：EP23165765.1

申请日：2023-03-31

申请人： SK Innovation Co., Ltd. ,  SK ie technology Co., Ltd.

发明人： KIM, Yun Bong ,  PARK, Jong Sang ,  CHO, Kyu Young ,  CHEON, Si Uk

IPC分类号： H01M10/54 ,  H01M50/417 ,  H01M50/443 ,  H01M50/446 ,  H01M50/449 ,  H01M50/489 ,  H01M50/494

摘要： The present disclosure relates to a mixed recycled polyolefin resin composition comprising a recycled polyolefin resin recovered from a waste separator and a new polyolefin resin, and a recycled product using the same. Since a mixed recycled polyolefin resin composition comprising a new polyolefin resin and a recycled polyolefin resin recovered from a waste separator according to an embodiment of the present disclosure has excellent physical and chemical properties and may be used for the development of applications in other industrial fields, thereby having excellent industrial advantages.

公开(公告)号：EP4250396A1

公开(公告)日：2023-09-27

申请号：EP23163338.9

申请日：2023-03-22

申请人： Dongguan Chao Ba Batteries Co. Ltd.

发明人： YU, Hong Shuai ,  WANG, Mingde ,  ZOU, Jian Ping ,  HU, Xiao Min

IPC分类号： H01M4/24 ,  H01M4/32 ,  H01M4/36 ,  H01M4/52 ,  H01M4/62 ,  H01M10/26 ,  H01M10/34 ,  H01M50/417 ,  H01M50/426

摘要： The invention relates to a Ni-MH battery. The positive electrode active material of the Ni-MH battery is made of spherical nickel hydroxide coated with β-CoOOH; the positive electrode additive used in the positive electrode of the nickel-hydrogen battery comprises tungsten and zinc, and the positive electrode additive further comprises at least one of yttrium and ytterbium. The separator of the battery is made of grafted or fluorinated or sulfonated polypropylene separator. The electrolyte of the Ni-MH battery is an alkaline aqueous solution composed of alkali metal hydroxide, and the concentration of alkali metal hydroxide is 5.5 - 8.0 mol /L. The negative electrode additive used in the negative electrode of the Ni-MH battery comprises yttrium. The Ni-MH battery can effectively reduce the increase in internal resistance of the Ni-MH battery during long-term overcharging in a high-temperature environment, and prolong the service life of the Ni-MH battery.