公开(公告)号：US20240360293A1

公开(公告)日：2024-10-31

申请号：US18580020

申请日：2022-07-29

Applicant: LG ENERGY SOLUTION, Ltd

Inventor： Ju Ryoun Kim ,  Woo Ha Kim ,  Sung Soo Yoon ,  Jeong Min Yang

IPC: C08K3/04 ,  C08L33/20 ,  H01M4/02 ,  H01M4/62 ,  H01M10/052

CPC classification number: C08K3/041 ,  C08L33/20 ,  H01M4/625 ,  H01M10/052 ,  C08K2201/001 ,  H01M2004/028

Abstract: A conductive agent dispersion includes carbon nanotubes, a dispersant, and a dispersion medium, wherein the dispersant includes a main dispersant and an auxiliary dispersant, wherein the main dispersant is a hydrogenated nitrile-based copolymer, a residual double bond value of the hydrogenated nitrile-based copolymer according to Equation 1 satisfies 0.3 wt % or less, and the auxiliary dispersant is a copolymer including an oxyalkylene unit and at least one of a styrene unit and an alkylene unit. An electrode and a lithium secondary battery which are prepared by using the same are also provided.

公开(公告)号：US12132204B2

公开(公告)日：2024-10-29

申请号：US17295235

申请日：2019-11-28

Applicant: Denka Company Limited

Inventor： Tatsuya Nagai ,  Shinichiro Osumi ,  Tetsuya Ito

IPC: H01M4/58 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/58 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2300/0028

Abstract: A composition for a positive electrode of a lithium ion secondary battery, the composition comprising:



an active material capable of storing and extracting lithium ion; and
an electric conductive material,
wherein the active material is lithium iron phosphate,
wherein the conductive material includes carbon black and carbon nanotube,
wherein the carbon black has an average primary particle diameter of 39 nm or less, and
wherein the carbon nanotube has an average diameter of 20 nm or less.

公开(公告)号：US12132191B2

公开(公告)日：2024-10-29

申请号：US17904699

申请日：2021-02-18

Applicant: VITO NV

Inventor： Danny Havermans ,  Sébastien Sallard ,  Ahmed Shafique ,  Dirk Vangeneugden ,  Annick Vanhulsel ,  An Hardy

IPC: H01M4/04 ,  C01B17/02 ,  C23C16/26 ,  C23C16/30 ,  C23C16/34 ,  C23C16/40 ,  H01M4/36 ,  H01M4/62 ,  H01M4/02 ,  H01M10/052

CPC classification number: H01M4/0428 ,  C01B17/0248 ,  C23C16/26 ,  C23C16/305 ,  C23C16/34 ,  C23C16/40 ,  H01M4/366 ,  H01M4/624 ,  H01M4/625 ,  C01P2002/52 ,  C01P2004/80 ,  C01P2006/40 ,  H01M2004/028 ,  H01M10/052

Abstract: The present disclosure is related to a method for applying a functional compound on sulfur particles by means of an atmospheric pressure plasma discharge including a gas or an activated gas flow resulting from the atmospheric pressure plasma discharge. The coating composition includes an inorganic electrically conductive compound, an electrically conductive carbon compound, an organic precursor compound of a conjugated polymer, a precursor of a hybrid organic-inorganic compound, or a mixture, and the functional compound provides the sulfur particles with an electrically conductive surface.

公开(公告)号：US20240356070A1

公开(公告)日：2024-10-24

申请号：US18292337

申请日：2022-06-20

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Shiguang Hu ,  Yunxian Qian ,  Zhengsheng Zhang ,  Xiaoxia Xiang ,  Yonghong Deng

IPC: H01M10/0567 ,  H01M4/02 ,  H01M4/505 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/42

CPC classification number: H01M10/0567 ,  H01M4/505 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/4235 ,  H01M2004/028 ,  H01M2300/004

Abstract: The application relates to the technical field of electrochemistry, in particular to a lithium ion battery, which comprises a positive electrode, a negative electrode and an electrolyte; the positive electrode comprises a positive electrode active material and a conductive agent, the positive electrode active material is a manganese-containing positive electrode material; the electrolyte comprises a compound represented by the following structural formula 1:




The positive electrode active material, the conductive agent and the compound represented by structural formula 1 meet the following condition:





0
.
5

≤


D
⁢
r
×
T
⁢
r

w

≤

1
⁢
6





wherein, Dr and Tr are the ratios of the average particle size and specific surface area of the positive electrode active material to the conductive agent, respectively; w is the mass percentage of the compound represented by structural formula 1 in the electrolyte, and the unit is %.

公开(公告)号：US20240356026A1

公开(公告)日：2024-10-24

申请号：US18686553

申请日：2022-08-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Sho Shibata

IPC: H01M4/58 ,  H01M4/02 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/5825 ,  H01M4/366 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: The disclosed negative electrode active material for a non-aqueous electrolyte secondary battery includes active material particles containing silicon, and a surface layer formed on surfaces of the active material particles. The surface layer contains a reaction product of a compound reacted so as to form a siloxane bond. The compound includes a structure represented by Si—R1—Si. R1 is a hydrocarbon group having 1 to 50 carbon atoms. The two Si's are each bound with at least one atomic group selected from the group consisting of an alkoxy group having 1 to 6 carbon atoms, and the like.

公开(公告)号：US12126008B2

公开(公告)日：2024-10-22

申请号：US17054576

申请日：2019-08-30

Applicant: LG Energy Solution, Ltd.

Inventor： Jiwon Min ,  Sun Kyu Kim ,  Kyung Eun Sun

IPC: H01M4/139 ,  H01M4/02 ,  H01M4/04 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/139 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/366 ,  H01M4/621 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021

Abstract: The present disclosure relates to a multi-layer electrode including a current collector; and a multi-layer electrode material layer comprising n active material layers (wherein, n≥2) formed on at least one surface of the current collector, wherein each of the active material layers contains an electrode active material and a binder, the binders in the respective active material layers are different from each other, and the multi-layer electrode material layer has a uniform porosity from first active material layer closest to the current collector to nth active material layer furthest from the current collector. The present disclosure also relates to a lithium secondary battery including the same.

公开(公告)号：US20240347700A1

公开(公告)日：2024-10-17

申请号：US18290931

申请日：2022-12-20

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Su Jin PARK ,  Jaewook LEE

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/04 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/0471 ,  H01M4/386 ,  H01M4/622 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

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

公开(公告)号：US12119493B2

公开(公告)日：2024-10-15

申请号：US17283109

申请日：2019-10-14

Applicant: LG CHEM, LTD.

Inventor： Hye Youn Lee ,  Ji Hye Park ,  Su Rim Lee

IPC: H01M4/58 ,  H01M4/13 ,  H01M4/133 ,  H01M4/134 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/5825 ,  H01M4/133 ,  H01M4/134 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative electrode and a secondary battery including the negative electrode, the negative electrode includes a negative electrode active material layer containing negative electrode active material particles and an additive. The additive is present in an amount of 1.8 parts by weight to 3.2 parts by weight based on 100 parts by weight of the negative electrode active material particles. The additive includes at least one selected from the group consisting of Li1+m1Alm1Ti2−m1(PO4)3, wherein 0

公开(公告)号：US20240339599A1

公开(公告)日：2024-10-10

申请号：US18621871

申请日：2024-03-29

Applicant: Ningde Amperex Technology Limited

Inventor： Xiaohu CAI

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0587

CPC classification number: H01M4/366 ,  H01M4/622 ,  H01M4/625 ,  H01M10/0587 ,  H01M2004/021 ,  H01M2004/028 ,  H01M4/661

Abstract: An electrochemical device includes a jelly-roll electrode assembly and a packaging shell. The jelly-roll electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator. The positive electrode plate includes a positive current collector, a first layer, and a second layer. The first layer includes inorganic particles. Based on a mass of the first layer, a mass percent of the inorganic particles is greater than or equal to 50%. The second layer includes a positive active material. A thickness of the first layer is d1 μm. An area of orthographic projection of the first layer is S1 mm2, an area of orthographic projection of the second layer is S2 mm2, satisfying: d1/S1≥2×10−6, and d1/S2≥2.5×10−6. The first layer is in contact with the packaging shell.

公开(公告)号：US20240337030A1

公开(公告)日：2024-10-10

申请号：US18743569

申请日：2024-06-14

Applicant: Commonwealth Scientific and Industrial Research Organisation ,  NewSouth Innovations Pty Limited

Inventor： Zhaojun Han ,  Constantine Tsounis ,  Rose Amal

IPC: C25B11/065 ,  C01B32/184 ,  C01B32/186 ,  C01B32/194 ,  C23C16/26 ,  C23C16/44 ,  C23C16/50 ,  C23C16/56 ,  C25B1/02 ,  C25B3/07 ,  C25B3/26 ,  H01B1/04 ,  H01G11/34 ,  H01M4/62

CPC classification number: C25B11/065 ,  C01B32/184 ,  C01B32/186 ,  C01B32/194 ,  C23C16/26 ,  C23C16/4418 ,  C23C16/50 ,  C23C16/56 ,  C25B1/02 ,  C25B3/07 ,  C25B3/26 ,  H01B1/04 ,  H01M4/625 ,  C01P2002/82 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2006/40 ,  H01G11/34

Abstract: Provided are a method for preparing a vertical branched graphene comprising treating a pristine vertical graphene with an inert plasma in the absence of an introduced carbon source to develop a vertical branched graphene. The method may also include pre-treating a substrate surface with an inert plasma; depositing a pristine vertical graphene onto the substrate surface by contacting the substrate surface with a deposition plasma comprising a carbon source gas for a deposition period. Also provided are a vertical branched graphene attached to a substrate surface, the vertical branched graphene having a trunk portion extending from the substrate surface, said trunk possessing an increased degree of branching as the distance from the substrate surface increases; and a freestanding branched graphene with a proximal end and a distal end, the proximal end comprising a trunk portion, the trunk portion possessing and increased degree of branching as the distance from the proximal end increases and the distance to the distal end decreases.