公开(公告)号：EP4425603A1

公开(公告)日：2024-09-04

申请号：EP23211854.7

申请日：2023-11-23

Applicant: Hansol Chemical Co., Ltd

Inventor： SHIM, HYEONWOO ,  KANG, SUNGHWAN ,  LEE, JEONGHUN ,  CHOI, WOOYEONG ,  KWON, SEMAN

IPC: H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M4/38 ,  H01M4/40 ,  H01M4/42 ,  H01M4/46 ,  H01M4/587

CPC classification number: H01M2004/02720130101 ,  H01M4/134 ,  H01M4/133 ,  H01M4/362 ,  H01M4/366 ,  H01M4/587 ,  H01M4/386 ,  H01M4/387 ,  H01M4/405 ,  H01M4/42 ,  H01M4/463 ,  H01M4/466 ,  Y02E60/10 ,  H01M4/364 ,  H01M2004/02120130101 ,  H01M4/583 ,  H01M4/38 ,  H01M4/625 ,  H01M10/0525 ,  H01M4/1395 ,  H01M4/36

Abstract: An anode active material for a lithium secondary battery includes a plurality of composites that each includes a core, and a first shell layer surrounding the core, and a second shell layer surrounding the plurality of composites. The composites may each include metal particles and carbon, and a distance between adjacent composites among the composites may be in a range of 80 nanometers (nm) to 300 nm.

公开(公告)号：EP2416410B1

公开(公告)日：2018-10-24

申请号：EP10759012.7

申请日：2010-03-30

Applicant: LG Chem, Ltd.

Inventor： LEE, Yongju ,  UHM, Insung ,  CHOI, Seungyoun ,  KIM, Jeyoung ,  JUNG, Dong Sub

IPC: H01M4/36 ,  H01M4/52 ,  H01M4/38 ,  H01M4/58 ,  H01M4/485 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/362 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M4/625 ,  H01M4/626 ,  H01M10/0525

Abstract: Disclosed are a composite which can be used as an electrode active material for a secondary battery, and the secondary battery comprising the same. The composite includes: a first material selected from the group consisting of metals and metalloids capable of being reversibly alloyed with lithium; a second material selected from the group consisting of metals incapable of being alloyed with lithium, compounds containing the metals, and compounds containing metals or metalloids capable of being irreversibly alloyed with lithium; and a third material which is at least one kind of metal having a higher electrical conductivity than the second material, wherein a content of the third material ranges from 10 to 10,000ppm based on the total weight of the composite. In the composite, the third material increases the electrical conductivity, thereby forming an electrical conducting path between materials within the composite. This allows the volume of a battery to be uniformly changed during the charge/discharge. Thus, when the composite is used as an electrode active material for a secondary battery, it is possible to improve a life characteristic of the battery, and minimize a change in a thickness of the electrode.

公开(公告)号：EP2469627B1

公开(公告)日：2018-10-10

申请号：EP12001310.7

申请日：2002-08-23

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Adachi, Momoe ,  Fujita, Shigeru ,  Endo, Takuya ,  Iwakoshi, Yasunobu ,  Shibamoto, Goto

IPC: H01M4/02 ,  H01M4/58 ,  H01M4/40 ,  H01M4/38

CPC classification number: H01M10/0525 ,  H01M4/38 ,  H01M4/382 ,  H01M4/387 ,  H01M4/405 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0569 ,  H01M2010/4292 ,  H01M2300/0037

Abstract: A battery with a high battery voltage at charging and improved energy density is provided. A cathode (12) and an anode (14) are laminated with a separator (15) sandwiched therebetween which is impregnated with an electrolyte. The cathode (12) has a cathode active material including a lithium composite oxide which contains lithium, at least either cobalt or nickel, and oxygen. The battery voltage at charging is 4.25 V or more. The total amount of lithium carbonate and lithium sulphate in the cathode (12) to the cathode active material is 1.0 wt% or less, a concentration of protic impurities in the electrolyte, which is converted to a mass ratio of protons to the electrolyte, is 20 ppm or less, or moisture content in the electrolyte is 20 ppm mass ratio or less to the electrolyte. This inhibits metal eluting from the lithium composite oxide even at high voltages.

公开(公告)号：EP2924778B1

公开(公告)日：2018-09-19

申请号：EP13857382.9

申请日：2013-11-19

Applicant: NISSAN MOTOR CO., LTD.

Inventor： YAMAMOTO, Kensuke ,  WATANABE, Manabu ,  MIKI, Fumihiro ,  SANADA, Takashi ,  CHIBA, Nobutaka

IPC: H01M4/134 ,  C22C13/00 ,  C22C18/00 ,  C22C18/04 ,  C22C21/02 ,  C22C21/10 ,  C22C27/02 ,  H01M4/36 ,  H01M4/38 ,  H01M4/62 ,  H01M4/66 ,  C22C1/04 ,  C22C24/00 ,  C22C28/00 ,  C22C29/18 ,  C22C30/04 ,  C22C30/06 ,  H01M4/42 ,  C22C9/00 ,  C22C30/00 ,  C22C1/02 ,  H01M10/052 ,  C22C1/10

CPC classification number: H01M4/134 ,  C22C1/02 ,  C22C1/0416 ,  C22C1/045 ,  C22C1/0483 ,  C22C1/1084 ,  C22C9/00 ,  C22C13/00 ,  C22C18/00 ,  C22C24/00 ,  C22C27/025 ,  C22C28/00 ,  C22C29/18 ,  C22C30/00 ,  C22C30/04 ,  C22C30/06 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/386 ,  H01M4/387 ,  H01M4/42 ,  H01M4/485 ,  H01M4/622 ,  H01M4/623 ,  H01M4/624 ,  H01M4/625 ,  H01M4/66 ,  H01M4/661 ,  H01M4/70 ,  H01M10/0427 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/30

Abstract: [TECHNICAL PROBLEM] To Provide a negative electrode for an electrical device such as a Li ion secondary battery that has a high initial capacity and exhibits good balance characteristics while maintaining high cycle characteristics. [SOLUTION TO PROBLEM] A negative electrode for an electrical device includes: a current collector; and an electrode layer containing a negative electrode active material, an electrically-conductive auxiliary agent and a binder and formed on a surface of the current collector, wherein the negative electrode active material contains an alloy represented by a following formula (1): Si x Zn y M z A a (in the formula (1) M is at least one metal selected from the group consisting of V, Sn, Al, C and combinations thereof, A is inevitable impurity, and x, y, z and a represent mass percent values and satisfy 0

公开(公告)号：EP3333962A4

公开(公告)日：2018-06-13

申请号：EP16834878

申请日：2016-06-27

Applicant: CENTRAL GLASS CO LTD

Inventor： ITABASHI SAORI ,  KAWABATA WATARU ,  SUZUKI KATSUTOSHI ,  TAKEDA KAZUNARI

IPC: H01M10/0567 ,  H01M2/16 ,  H01M4/38 ,  H01M4/40 ,  H01M4/46 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/587 ,  H01M10/05 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569

CPC classification number: H01M10/0568 ,  H01M2/1626 ,  H01M2/1653 ,  H01M4/386 ,  H01M4/387 ,  H01M4/405 ,  H01M4/463 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0567

Abstract: An object of the present invention is to provide a nonaqueous electrolytic solution and a nonaqueous electrolytic solution battery capable of showing high output characteristics at a low temperature even after the battery is used to some extent, and capable of showing good high-rate properties, and further capable of showing sufficient performance again at low temperature even after stored at a high temperature. The present invention is characterized in the use of a nonaqueous electrolytic solution containing a nonaqueous solvent and an electrolyte dissolved in the nonaqueous solvent, the nonaqueous electrolytic solution comprising a difluoro ionic complex (1-Cis) in a cis conformation represented by the general formula (1-Cis), and at least one compound selected from the group consisting of cyclic sulfonic acid ester, cyclic sulfonic acid ester having an unsaturated bond, cyclic sulfuric acid ester, cyclic disulfonic acid ester, chain disulfonic acid ester, cyclic disulfonic acid anhydride, nitrile group-containing compound, silyl phosphate ester derivative, and silyl borate ester derivative:

公开(公告)号：EP3314685A1

公开(公告)日：2018-05-02

申请号：EP16814824.5

申请日：2016-06-23

Applicant: Nanyang Technological University ,  Maritime and Port Authority of Singapore

Inventor： YAZAMI, Rachid ,  ZHANG, Wenyu

IPC: H01M4/38 ,  H01M4/04

CPC classification number: H01M4/387 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/364 ,  H01M4/386 ,  H01M4/622 ,  H01M4/624 ,  H01M4/625 ,  H01M10/052

Abstract: According to embodiments of the present invention, an electrode is provided. The electrode includes silicon, tin, and a non-alloy of a transition metal. According to further embodiments of the present invention, a battery cell including the electrode and a battery arrangement having a plurality of battery cells are also provided. Methods of forming the electrode, the battery cell and the battery arrangement are also provided.

公开(公告)号：EP3016181B1

公开(公告)日：2018-04-25

申请号：EP14836375.7

申请日：2014-08-14

Applicant: LG Chem, Ltd.

Inventor： SON, Byoungkuk ,  JANG, Minchul ,  KIM, Yu Mi ,  PARK, Gi Su

IPC: H01M4/136 ,  H01M4/133 ,  H01M10/05 ,  H01M4/1397 ,  H01M4/36 ,  H01M4/38 ,  H01M4/48 ,  H01M4/56 ,  H01M4/58 ,  H01M4/62 ,  H01M10/052 ,  H01M4/02 ,  H01M4/04

CPC classification number: H01M4/366 ,  H01M4/0409 ,  H01M4/0416 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/38 ,  H01M4/382 ,  H01M4/386 ,  H01M4/387 ,  H01M4/48 ,  H01M4/56 ,  H01M4/5815 ,  H01M4/5825 ,  H01M4/62 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028 ,  Y02T10/7011

Abstract: The present application relates to a cathode for a lithium-sulfur battery and a method of preparing the same. A cathode for a lithium-sulfur battery according to an exemplary embodiment of the present application includes: a cathode active part including a sulfur-carbon composite; and a cathode coating layer provided on at least a portion of a surface of the cathode active part and including an inorganic oxide.

公开(公告)号：EP2924769B1

公开(公告)日：2018-04-18

申请号：EP13856469.5

申请日：2013-11-19

Applicant: NISSAN MOTOR CO., LTD.

Inventor： YAMAMOTO, Kensuke ,  WATANABE, Manabu ,  MIKI, Fumihiro ,  SANADA, Takashi ,  CHIBA, Nobutaka

IPC: C22C18/04 ,  C22C24/00 ,  C22C30/00 ,  C22C30/04 ,  C22C30/06 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/62 ,  C22C18/00 ,  C23C14/34 ,  C23C14/16 ,  H01M10/0585 ,  H01M10/0525

CPC classification number: H01M4/386 ,  C22C18/00 ,  C22C18/04 ,  C22C24/00 ,  C22C30/00 ,  C22C30/04 ,  C22C30/06 ,  C23C14/165 ,  C23C14/3464 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/387 ,  H01M4/583 ,  H01M4/622 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2004/027

Abstract: [TECHNICAL PROBLEM] To provide a negative electrode for an electric device such as a Li ion secondary battery, which shows good balanced characteristics where initial capacity is high while maintaining high cycle characteristics. [SOLUTION TO PROBLEM] The negative electrode for an electric device includes: a current collector; and an electrode layer containing a negative electrode active material, an electrically-conductive auxiliary agent and a binder and formed on a surface of the current collector. The negative electrode active material is a mixture of a carbon material and an alloy represented by the following formula (1): Si x Zn y M z A a ...(1) (in formula (1), M is at least one of metal selected from the group consisting of V, Sn, Al, C, and combinations thereof, A is inevitable impurity, and x, y, z and a represent mass percent values and satisfy 0

公开(公告)号：EP3171434A4

公开(公告)日：2018-01-03

申请号：EP15821711

申请日：2015-06-23

Applicant: SONY CORP

Inventor： SUGITA SHUHEI ,  TAKI YUKO ,  ICHIHASHI AKIRA

IPC: H01M4/587 ,  H01M2/10 ,  H01M2/16 ,  H01M4/36 ,  H01M4/38 ,  H01M4/48 ,  H01M4/58 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0566

CPC classification number: H01M4/366 ,  B60L11/1851 ,  B60L2210/00 ,  B60L2240/54 ,  H01M2/10 ,  H01M2/16 ,  H01M4/36 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/48 ,  H01M4/58 ,  H01M4/587 ,  H01M4/62 ,  H01M4/623 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0566 ,  H01M2004/027 ,  H01M2220/20

Abstract: The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode includes an anode current collector and an anode active material layer that includes an anode active material, and is provided on the anode current collector, a surface of the anode active material being covered with one or more coatings containing one or both of polyvinylidene fluoride and a copolymer of polyvinylidene fluoride.

公开(公告)号：EP3133680A4

公开(公告)日：2017-12-13

申请号：EP15779450

申请日：2015-04-17

Applicant: UBE INDUSTRIES

Inventor： NAKAYAMA TAKESHIGE ,  NAKAYAMA TOMONORI ,  KITAYAMA NAOKI

IPC: H01M4/62 ,  H01M4/13 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395

CPC classification number: H01M4/0404 ,  H01M4/04 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M4/622 ,  H01M10/0525

Abstract: An electrode is produced by forming an electrode layer on a surface of a current collector using an electrode composition containing a binder including a polyamide acid that is obtained from a specific aromatic tetracarboxylic acid compound and a diamine component containing a diamine having a carboxyl group, and subsequently performing heat treatment to remove a solvent and perform an imidization reaction of the polyamide acid. It is preferable that the electrode composition further contains a crosslinking agent having an epoxy group or an oxazoline group. It is also preferable that the electrode composition further contains a pyridine compound.