公开(公告)号：US20240363910A1

公开(公告)日：2024-10-31

申请号：US18768551

申请日：2024-07-10

申请人： Ningde Amperex Technology Limited

发明人： Lilan ZHANG ,  Chao TANG

IPC分类号： H01M10/42 ,  H01M4/02 ,  H01M4/131 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568

CPC分类号： H01M10/4235 ,  H01M4/131 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M2004/028 ,  H01M2300/0025

摘要： An electrochemical device includes a positive electrode and an electrolyte. The positive electrode includes a positive current collector and a positive electrode material layer disposed on at least one surface of the positive current collector. After the electrochemical device is charged and discharged for a first cycle, a number of pores in any one region of a 20 μm×20 μm size on the positive current collector is X, where X is an integer ranging from 0 to 10. The electrolyte includes a fluorine-containing sulfonyl imide salt and a fluorine-containing substance Y. Based on a mass of the electrolyte, a mass percent of the fluorine-containing sulfonyl imide salt is A %, and a mass percent of the fluorine-containing substance Y is B %. X, A, and B satisfy: 0≤AX/B≤450.

公开(公告)号：US20240363903A1

公开(公告)日：2024-10-31

申请号：US18647198

申请日：2024-04-26

申请人： SK Innovation Co., Ltd. ,  SK On Co., Ltd.

发明人： Min Kyung Seon ,  Hong Won Lee ,  Jeong Yun Kim ,  Yu Na Shim

IPC分类号： H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0585

CPC分类号： H01M10/0567 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0585

摘要： An additive for an electrolyte solution of a secondary battery includes a microcapsule particle. The microcapsule particle includes a core containing a phosphorus-based flame retardant, and a shell surrounding a surface of the core and including a polymer that includes a urea-derived repeating unit, a formaldehyde-derived repeating unit and a resorcinol-derived repeating unit. An electrolyte solution and a lithium secondary battery including the additive for an electrolyte solution have improved stability, life-span and storage properties at high temperature.

公开(公告)号：US20240363900A1

公开(公告)日：2024-10-31

申请号：US18139119

申请日：2023-04-25

申请人： UCHICAGO ARGONNE, LLC

发明人： Zhengcheng Zhang ,  Mingfu He ,  Qian Liu

IPC分类号： H01M10/0567 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/44 ,  H01M50/46

CPC分类号： H01M10/0567 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/443 ,  H01M50/46 ,  H01M2300/0034 ,  H01M2300/0051

摘要： An electrochemical cell configured to operate at low temperatures includes a cathode comprising a cathode active material, an anode comprising an anode active material, a separator disposed between the cathode and the anode, and an electrolyte. The electrolyte includes a fluorinated cyclic carbonate, a solid electrolyte interphase (SEI)-forming additive salt, a metal fluorophosphate salt, and a fluorinated organic compound.

公开(公告)号：US20240363857A1

公开(公告)日：2024-10-31

申请号：US18765241

申请日：2024-07-06

申请人： SUZHOU GAOBO ENERGY STORAGE SCITECH CO., LTD.

发明人： Jianqing ZHAO ,  Shiyu LI ,  Lijun GAO

IPC分类号： H01M4/58 ,  H01M4/04 ,  H01M4/36 ,  H01M4/587 ,  H01M4/62 ,  H01M10/054 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/058

CPC分类号： H01M4/5825 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/364 ,  H01M4/582 ,  H01M4/587 ,  H01M4/625 ,  H01M10/054 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/058 ,  H01M2300/0037

摘要： The present invention discloses an iron-based cathode material for a sodium-ion battery, which comprises a Na3Fe2(SO4)3F material and a carbon-based material embedded into the bulk structure of Na3Fe2(SO4)3F material. The weight percentage of the carbon-based material is ranked between 1% and 10%. The present invention also provides a method for preparing the above-mentioned iron-based cathode material for a sodium-ion battery, and a corresponding sodium-ion full battery using the Na3Fe2(SO4)3F-based cathode material. The Na3Fe2(SO4)3F cathode material ensures desired electrochemical sodium storage performance, involving high specific sodium storage capacity, improved cycle stability and superior rate performance in comparison with that of various pristine NaxFey(SO4)z materials. The actual operating potential of the reported sodium-ion full battery in the present invention is significantly higher than the output potential of existing commercial sodium-ion full batteries, and the increase in battery energy density is also achieved.

公开(公告)号：US12132171B2

公开(公告)日：2024-10-29

申请号：US17572543

申请日：2022-01-10

申请人： FUJIFILM Corporation

发明人： Hiroshi Isojima ,  Hideyuki Suzuki

IPC分类号： H01M10/0568 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0585

CPC分类号： H01M10/0568 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0585 ,  H01M2300/0037

摘要： An inorganic solid electrolyte-containing composition is a composition containing an inorganic solid electrolyte, a binder, and an organic solvent, where the composition contains, as the binder, at least two kinds of binder A and binder B which differ in adsorption rate with respect to the inorganic solid electrolyte, and an adsorption rate of the inorganic solid electrolyte-containing composition is 15% or more, and an adsorption rate of the binder B is less than 10%.

公开(公告)号：US12125981B2

公开(公告)日：2024-10-22

申请号：US17603991

申请日：2020-04-27

申请人： LG Energy Solution, Ltd.

发明人： Jung Min Lee ,  Young Min Lim ,  Chul Haeng Lee

IPC分类号： H01M10/0567 ,  C07F7/08 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/42

CPC分类号： H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/4235 ,  C07F7/081 ,  H01M10/052 ,  H01M2300/0025 ,  H01M2300/0028

摘要： An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte includes a lithium salt, an organic solvent, and at least one cyano silane-based compound selected from the group consisting of compounds represented by Formulae 1 to 3.

公开(公告)号：US20240347856A1

公开(公告)日：2024-10-17

申请号：US18034473

申请日：2021-10-29

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Xun Zhang ,  Makoto Ikeda ,  Yusuke Akita ,  Hayato Matsuyama

IPC分类号： H01M50/417 ,  H01M4/02 ,  H01M4/38 ,  H01M4/525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/406 ,  H01M50/426 ,  H01M50/451

CPC分类号： H01M50/417 ,  H01M4/386 ,  H01M4/525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/406 ,  H01M50/426 ,  H01M50/451 ,  H01M2004/027 ,  H01M2004/028

摘要： The present invention provides a separator for nonaqueous secondary batteries, said separator comprising a silicon-containing (Si-containing) molecule. With respect to an Si-containing image of this separator for nonaqueous secondary batteries as detected by time-of-flight secondary ion mass spectrometry (TOF-SIMS), the Voronoi area (mu) of the most frequent ones among Voronoi polygons that are obtained by Voronoi tessellation of the Si-containing image is within the range of from 1.0 μm2 to 17.5 μm2 or within the range of from 6.0 μm2 to 12.0 μm2 and the spread (σ) of the Voronoi area frequency distribution of the Si-containing image as detected by TOF-SIMS is within the range of from 0.5 μm2 to 8.5 μm2.

公开(公告)号：US20240347773A1

公开(公告)日：2024-10-17

申请号：US18294097

申请日：2023-01-10

申请人： LG ENERGY SOLUTION, LTD.

发明人： Eun-Ji JANG ,  Chang-Hoon LEE

IPC分类号： H01M10/0569 ,  H01M10/0567 ,  H01M10/0568

CPC分类号： H01M10/0569 ,  H01M10/0567 ,  H01M10/0568 ,  H01M2300/0037

摘要： The present disclosure relates to a nonaqueous electrolyte having improved stability. The nonaqueous electrolyte includes: a first solvent including a heterocyclic compound having at least one double bond or not, and containing at least one of oxygen and sulfur atoms; a second solvent including at least one of an ether-based compound, an ester-based compound, an amide-based compound and a carbonate-based compound; and a first lithium salt, wherein the first lithium salt includes lithium bis(nonafluorobutanesulfonyl) imide, and the lithium bis(nonafluorobutanesulfonyl) imide is present in an amount of 2-5 wt % based on 100 wt % of the total weight of the nonaqueous electrolyte.

公开(公告)号：US20240339653A1

公开(公告)日：2024-10-10

申请号：US18732843

申请日：2024-06-04

申请人： MURATA MANUFACTURING CO., LTD.

发明人： Masayuki IHARA

IPC分类号： H01M10/0525 ,  H01M10/0568 ,  H01M50/414 ,  H01M50/451

CPC分类号： H01M10/0525 ,  H01M10/0568 ,  H01M50/414 ,  H01M50/451

摘要： A secondary battery includes a positive electrode, a negative electrode, a separator, a heat-resistant layer, and an electrolytic solution. The positive electrode includes a positive electrode active material layer. The negative electrode includes a negative electrode active material layer. The separator and the heat-resistant layer are disposed between the positive electrode and the negative electrode. The electrolytic solution includes an electrolyte salt. The heat-resistant layer is disposed at least in a region in which the positive electrode active material layer and the negative electrode active material layer are opposed to each other. The heat-resistant layer has a melting point or a decomposition temperature higher than a melting point or a decomposition temperature of the separator. The electrolyte salt includes an imide anion, and the imide anion includes at least one of a first imide anion represented by Formula (1), a second imide anion represented by Formula (2), a third imide anion represented by Formula (3), or a fourth imide anion represented by Formula (4).

公开(公告)号：US20240339602A1

公开(公告)日：2024-10-10

申请号：US18207267

申请日：2023-06-08

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Si Hyoung OH ,  Jinyeon HWANG ,  Minah LEE ,  Woo Joo NO ,  Kyung Yoon CHUNG

IPC分类号： H01M4/46 ,  C07F9/09 ,  H01M4/04 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/44

CPC分类号： H01M4/466 ,  C07F9/09 ,  H01M4/0416 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/44

摘要： Exemplary embodiments of the present invention may provide a magnesium electrode including an electrode plate including magnesium and a protective layer located on at least a part of a surface of the electrode plate, in which the protective layer includes a phosphoric acid alkyl ester compound.