公开(公告)号：US20240347711A1

公开(公告)日：2024-10-17

申请号：US18756030

申请日：2024-06-27

申请人： MURATA MANUFACTURING CO., LTD.

发明人： Yuli LI ,  Siming YANG ,  Jixian LV

IPC分类号： H01M4/36 ,  C09D105/00 ,  C09D105/04 ,  C09D129/04 ,  H01M4/02 ,  H01M4/131 ,  H01M4/137 ,  H01M4/525 ,  H01M4/60 ,  H01M10/0525

CPC分类号： H01M4/366 ,  C09D105/00 ,  C09D105/04 ,  C09D129/04 ,  H01M4/131 ,  H01M4/137 ,  H01M4/525 ,  H01M4/608 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

摘要： A positive electrode composite material, a preparation method therefor, a positive electrode and a lithium ion secondary battery are provided. The positive electrode composite material includes: a positive electrode active material; and a coating layer coating the positive electrode active material, the coating layer includes one or more of a polysaccharide organic polymer, polyvinyl alcohol and polypropylene alcohol. The positive electrode composite material, the method for preparing the positive electrode composite material, and the positive electrode and the lithium ion secondary battery which includes the positive electrode composite material in the present application, can effectively inhibit side reactions between the positive electrode active material and an electrolyte in the lithium ion secondary battery, reduce the dissolution of transition metals in the positive electrode active material, prevent breaking of the positive electrode active material particles, and improve the initial Coulombic efficiency and cycle performance of the lithium ion secondary battery.

公开(公告)号：US12009505B2

公开(公告)日：2024-06-11

申请号：US15930179

申请日：2020-05-12

申请人： Global Graphene Group, Inc.

发明人： Sheng-Yi Lu ,  Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01M4/36 ,  H01M4/02 ,  H01M4/133 ,  H01M4/134 ,  H01M4/137 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/1399 ,  H01M4/38 ,  H01M4/60 ,  H01M10/0525

CPC分类号： H01M4/364 ,  H01M4/133 ,  H01M4/134 ,  H01M4/137 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/1399 ,  H01M4/38 ,  H01M4/602 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

摘要： Provided is a composite layer of graphene sheets and anode particles being dispersed in a conducting polymer network for a lithium battery anode (negative electrode), the layer comprising a mixture of a conducting polymer network, multiple graphene sheets, and multiple particles of an anode active material, wherein the anode particles have a diameter or thickness from 0.5 nm to 20 μm and occupy from 30% to 98% by weight, the graphene sheets occupy from 0.01% to 25% by weight, and the conducting polymer network occupies from 1% to 30% by weight based on the total mixture weight and wherein the graphene sheets and the conducting polymer network together form dual conducting pathways for both electrons and lithium ions.

公开(公告)号：US20240186516A1

公开(公告)日：2024-06-06

申请号：US18556588

申请日：2022-04-25

申请人： DREXEL UNIVERSITY

发明人： Krishna Kumar Sarode ,  Vibha Kalra

IPC分类号： H01M4/60 ,  C08K3/06 ,  C08L33/20 ,  H01M4/02 ,  H01M4/137 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0569

CPC分类号： H01M4/604 ,  C08K3/06 ,  C08L33/20 ,  H01M4/137 ,  H01M4/606 ,  H01M4/622 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0569 ,  C08L2203/20 ,  H01M2004/021 ,  H01M2004/028

摘要： Methods of making a cathode active material, including steps of: a) mixing a conductive polymer, a nitrogen containing polymer or a combination of a conductive polymer and a nitrogen-containing polymer with sulfur in the presence of a solvent to form a mixture, using a weight ratio of the conductive polymer and/or nitrogen containing polymer to the sulfur of from about 1:2 to about 1:8; and b) heating the mixture to a temperature of from about 250#C to about 400#C under a pressure of from about 0.05 bar to about 2.0 bar to form the cathode active material. A cathode active material formed by the method and cells and batteries employing the cathode active material.

公开(公告)号：US20230335709A1

公开(公告)日：2023-10-19

申请号：US18028928

申请日：2021-09-27

申请人： LG Energy Solution, Ltd.

发明人： Joon Koo Kang ,  Ki Hwan Kim ,  Il Ha Lee ,  Sang Joon Park

IPC分类号： H01M4/137 ,  H01M4/1399 ,  H01M4/04 ,  H01M10/052

CPC分类号： H01M4/137 ,  H01M4/1399 ,  H01M4/0404 ,  H01M4/0466 ,  H01M10/052

摘要： The present application relates to an electrode, a method for manufacturing the electrode, and a secondary battery comprising the electrode. The present application relates to an electrode comprising a current collector, an active material layer, and a thiophene polymer layer formed on the active material layer and can provide an electrode capable of ensuring a higher level of adhesion force between particles and adhesion force between the active material layer and the current collector relative to the binder content in the active material layer. In addition, the present application can provide a method for manufacturing the electrode, and a secondary battery comprising the same.

公开(公告)号：US11664491B2

公开(公告)日：2023-05-30

申请号：US16330730

申请日：2017-09-05

申请人： OXIS ENERGY LIMITED ,  COVESTRO DEUTSCHLAND AG

发明人： Thomas Klimmasch ,  Jan Weikard ,  Hans-Josef Laas ,  Jürgen Köcher ,  David Ainsworth ,  Stephen Rowlands ,  Justyna Katarzyna Kreis ,  Stephen Lawes ,  Sebastien Desilani

IPC分类号： H01M4/137 ,  H01M4/134 ,  H01M10/052 ,  H01M4/62 ,  H01M4/1395 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/40 ,  H01M4/02

CPC分类号： H01M4/137 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/382 ,  H01M4/622 ,  H01M10/052 ,  H01M10/0525 ,  H01M4/405 ,  H01M4/62 ,  H01M2004/027

摘要： An anode for an electrochemical cell comprises a lithium metal or lithium metal alloy, and a polymer coating deposited on the lithium metal or lithium metal alloy. The polymer coating is doped with lithium ions and comprises a polyisocyanurate material. The polyisocyanurate material contains ether- and/or silicone-containing further groups. The ether-containing group is a polyether, and/or wherein the silicone-containing group is a siloxane group.

公开(公告)号：US20230064888A1

公开(公告)日：2023-03-02

申请号：US17895307

申请日：2022-08-25

申请人： HYDRO-QUÉBEC

发明人： Rachel LÉVESQUE-BÉLANGER ,  Andrea PAOLELLA ,  Jean-Christophe DAIGLE ,  Basile COMMARIEU ,  Michel ARMAND ,  Karim ZAGHIB

IPC分类号： H01M4/60 ,  C07D209/48 ,  C08G75/14 ,  H01M4/137 ,  H01M4/38 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0565 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

摘要： The present technology relates to a sulfur-containing polymer or organic compound for use in a positive electrode material, especially in lithium batteries. More specifically, the use of this sulfur-containing polymer or compound as an active electrode material makes it possible to combine sulfur and an active organic cathode material. The present technology also relates to the use of the sulfur-containing polymer or organic compound as defined herein as a solid polymer electrolyte (SPE) or as an additive for electrolyte, especially in lithium batteries.

公开(公告)号：US11569546B2

公开(公告)日：2023-01-31

申请号：US16844914

申请日：2020-04-09

申请人： Samsung SDI Co., Ltd.

发明人： Jin Taek Kim ,  Eun Ok Kwak ,  Jang Hoon Kim ,  Jin Bhum Yun ,  Jong Yeol Woo ,  Kwang Deuk Lee ,  Woo Sung Choi

IPC分类号： H01M50/383 ,  H01M50/30 ,  H01M4/131 ,  H01M4/137 ,  H01M4/02

摘要： An energy storage module includes: a cover member accommodating a plurality of battery cells in an internal receiving space, each of the battery cells including a vent; a top plate coupled to a top of the cover member and including a duct corresponding to the vent of at least one of the battery cells; a top cover coupled to a top of the top plate and having an exhaust area corresponding to the duct, the exhaust area having a plurality of discharge openings, the top cover including a protrusion protruding from a bottom surface of the top cover, the protrusion extending around a periphery of the exhaust area and around a distal end of the duct; and an extinguisher sheet between the top cover and the top plate, the extinguisher sheet being configured to emit a fire extinguishing agent at a reference temperature.

公开(公告)号：US11552298B2

公开(公告)日：2023-01-10

申请号：US16157621

申请日：2018-10-11

申请人： NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY ,  SUMITOMO RUBBER INDUSTRIES, LTD.

发明人： Naoto Yamashita ,  Takashi Mukai ,  Masahiro Yanagida ,  Tatsuya Kubo ,  Fumiya Chujo

IPC分类号： H01M4/04 ,  H01M4/62 ,  H01M4/137 ,  H01M4/1399 ,  H01M4/60 ,  H01M4/36 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/052 ,  H01M4/38 ,  H01M4/13 ,  H01M4/02 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/58

摘要： An object of the present invention is to provide a lithium-ion secondary battery having a large charge and discharge capacity and excellent cycle characteristics irrespective of kind and shape of a current collector. The lithium-ion secondary battery comprises an electrode comprising a primer layer for protecting a current collector and a crosslinking agent layer comprising a compound being capable of crosslinking an aqueous binder contained in the primer layer, the both layers being disposed between a current collector and an active material layer comprising a sulfur-based active material.

公开(公告)号：US11527759B2

公开(公告)日：2022-12-13

申请号：US17751541

申请日：2022-05-23

申请人： Slobodan Petrovic

发明人： Slobodan Petrovic

IPC分类号： H01M4/66 ,  H01M4/137 ,  H01M4/60 ,  H01M10/052 ,  H01M4/62 ,  H01M4/02

摘要： A dual porosity cathode for a lithium-air battery made from porous nanographene sponge molded to form a multitude of pores embedded in a polymer layer. The first level of porosity is the interior surface area of the molded pores. The second level of porosity is the interior surface area within the micropores within the porous nanographene sponge material. The dual porosity cathode is useful for a lithium-air battery because of the greatly increased cathode surface area created by the micropores and the very small localized quantities of LiO2 that form in the micropores from the reaction between Li+ and oxygen.

公开(公告)号：US11515528B2

公开(公告)日：2022-11-29

申请号：US17692030

申请日：2022-03-10

申请人： Sila Nanotechnologies Inc.

发明人： Gleb Yushin ,  Oleksandr Magazynskyy ,  Patrick Dixon ,  Benjamin Hertzberg

IPC分类号： H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62 ,  H01M4/133 ,  H01M4/137 ,  H01M4/60 ,  H01M4/134 ,  H01B1/18 ,  H01B1/24 ,  H01M4/1395 ,  H01M10/0525 ,  B82Y30/00 ,  H01M4/1393

摘要： Described herein are improved composite anodes and lithium-ion batteries made therefrom. Further described are methods of making and using the improved anodes and batteries. In general, the anodes include a porous composite having a plurality of agglomerated nanocomposites. At least one of the plurality of agglomerated nanocomposites is formed from a dendritic particle, which is a three-dimensional, randomly-ordered assembly of nanoparticles of an electrically conducting material and a plurality of discrete non-porous nanoparticles of a non-carbon Group 4A element or mixture thereof disposed on a surface of the dendritic particle. At least one nanocomposite of the plurality of agglomerated nanocomposites has at least a portion of its dendritic particle in electrical communication with at least a portion of a dendritic particle of an adjacent nanocomposite in the plurality of agglomerated nanocomposites.