-
公开(公告)号：US11831024B2
公开(公告)日：2023-11-28
申请号：US17810644
申请日：2022-07-05
发明人： Ang Fu , Chengyong Liu , Yongsheng Guo , Jiawei Fu , Qian Li , Bobing Hu , Shengyuan Huang
IPC分类号： H01M4/66 , H01M4/80 , H01M10/052 , H01M4/02
CPC分类号： H01M4/667 , H01M4/66 , H01M4/801 , H01M10/052 , H01M2004/027
摘要： This application provides a polymer current collector, a preparation method thereof, and a secondary battery, battery module, battery pack, and apparatus associated therewith. The polymer current collector provided in this application includes polymer film layers, where the polymer film layers include a first polymer film layer and a second polymer film layer, a resistivity of the first polymer film layer is denoted as ρ1, a resistivity of the second polymer film layer is denoted as ρ2, and the current collector satisfies ρ1>ρ2. The polymer current collector in this application can induce to deposit of lithium metal from a low conductivity side to a high conductivity side, avoiding risks of depositing lithium ions on the surface of the current collector and thereby increasing cycle life of lithium metal batteries.
-
2.发明授权公开(公告)号：US11217822B2
公开(公告)日：2022-01-04
申请号：US16972824
申请日：2020-06-17
发明人： Chengdu Liang , Chengyong Liu , Bobing Hu , Jiawei Fu , Qian Li , Meng Cheng , Yongsheng Guo
IPC分类号： H01M10/0562 , H01M10/0525 , H01M10/0585
摘要： The present application provides a preparation method for a solid electrolyte, including: acquiring an initial reaction mixture including a lithium precursor, a central atom ligand and an organic solvent; acquiring a modified solution including a borate ester and the organic solvent; mixing the initial reaction mixture and the modified solution, and drying to acquire an initial product; performing a grinding, cold press and heat treatment to the initial product to obtain the solid electrolyte. In the preparation method provided by the present application, a B and O co-doped sulphide solid electrolyte can be obtained by modifying the sulphide solid electrolyte with the borate ester as a doping raw material. The ionic conductivity of the prepared sulphide solid electrolyte is significantly improved, which is also conducive to improvement of energy density of the all-solid-state batteries.
-
3.发明授权公开(公告)号：US11764360B2
公开(公告)日：2023-09-19
申请号：US17559378
申请日：2021-12-22
发明人： Qian Li , Meng Cheng , Chengyong Liu , Bobing Hu , Jiawei Fu , Shengyuan Huang , Yongsheng Guo
CPC分类号： H01M4/623 , C08J5/18 , H01M4/0404 , H01M4/73 , C08J2353/00 , H01M10/0525 , H01M2004/027 , H01M2220/20
摘要： This application provides a negative electrode plate, a lithium metal battery, and an apparatus including the lithium metal battery. The negative electrode plate includes a negative electrode current collector and a lithium-metal negative electrode disposed on at least one surface of the negative electrode current collector, where a polymer protective film is disposed on a surface of the lithium-metal negative electrode away from the negative electrode current collector, the polymer protective film includes a citric acid copolymer, and a number-average molecular weight Mn of the citric acid copolymer is 10,000 to 1,000,000. In this application, a polymer protective film with high tensile strength, high puncture strength, high elongation, and high electrolyte holding capacity may be formed on the surface of the lithium-metal negative electrode in the negative electrode plate.
-
公开(公告)号：US20220109180A1
公开(公告)日：2022-04-07
申请号：US17553836
申请日：2021-12-17
发明人： Qian LI , Chengyong Liu , Yongshen Guo , Jiawei Fu , Bobing Hu , Meng Cheng
IPC分类号： H01M10/0525 , H01M4/1395 , H01M10/0565
摘要： The present application discloses a lithium metal battery, a process for preparing the same, an apparatus containing the lithium metal battery, and a negative electrode plate. The lithium metal battery includes a positive electrode plate, a negative electrode plate and an electrolyte, the positive electrode plate including a positive electrode current collector and a positive electrode active material layer arranged on at least one surface of the positive electrode current collector and comprising a positive electrode active material, wherein the negative electrode plate includes a polymer material base layer; and a lithium-based metal layer that is directly bonded to at least one surface of the polymer material base layer.
-
公开(公告)号：US11929509B2
公开(公告)日：2024-03-12
申请号：US17561748
申请日：2021-12-24
发明人： Chengdu Liang , Yongsheng Guo , Tao Zhang , Chengyong Liu , Jun Yang
IPC分类号： H01M4/62 , B22F1/145 , H01M4/38 , H01M10/0525
CPC分类号： H01M4/626 , B22F1/145 , H01M4/382 , H01M10/0525 , B22F2301/054 , H01M2220/20
摘要： Disclosed are a lithium metal composite electrode material for a lithium metal battery, a preparation method for the same, and an electrode, battery, battery module, battery pack and apparatus comprising the same. The lithium metal composite electrode material comprises: lithium metal particles and a lithium-containing conductive layer serving as a supporting framework, the supporting framework being filled with the lithium metal particles; wherein the lithium-containing conductive layer comprises an inorganic lithium compound and a lithium alloy. The lithium metal composite electrode material can solve the problems that, when lithium metal is used as a negative electrode, the electrolyte is easily consumed, and lithium dendrites are easily produced, deposited and dissolved to change electrode thickness, which in turn affects the cycle stability, electrical performance and structural stability of the battery, so as to achieve the purpose of improving the structural stability and cycle stability of the lithium metal electrode.
-
公开(公告)号：US11888115B2
公开(公告)日：2024-01-30
申请号：US17550946
申请日：2021-12-14
发明人： Chengyong Liu , Yongsheng Guo , Chengdu Liang , Quan Fan
IPC分类号： H01M10/0567 , H01M10/052 , H01M10/0569 , H01M4/38 , H01M4/134 , H01M4/40 , H01M4/525
CPC分类号： H01M10/0567 , H01M4/134 , H01M4/382 , H01M10/052 , H01M10/0569 , H01M4/405 , H01M4/525 , H01M2300/0025
摘要： This application provides an electrolytic solution and a lithium metal battery containing the electrolytic solution. The electrolytic solution includes a lithium salt, an organic solvent, and an additive. The additive includes a sultam compound represented by Structural Formula I. R is selected from substituted or unsubstituted C1 to C10 hydrocarbyls, where a substituent is selected from a phenyl, C1 to C6 alkyls, or C1 to C6 alkenyls. X is a sulfur atom or a phosphorus atom. R1 and R2 each are independently selected from an oxygen atom, a fluorine atom, a chlorine atom, a bromine atom, and substituted or unsubstituted C1 to C10 hydrocarbyls. Both R1 and R2 are not oxygen atoms concurrently.
-
7.发明公开公开(公告)号：US20230198015A1
公开(公告)日：2023-06-22
申请号：US18062583
申请日：2022-12-07
发明人： Qian Li , Chengyong Liu , Yongsheng Guo , Jiawei Fu , Bobing Hu , Meng Cheng , Ang Fu
IPC分类号： H01M10/0565 , H01M10/052 , C09K19/32
CPC分类号： H01M10/0565 , H01M10/052 , C09K19/32 , H01M2300/0082
摘要： A supramolecular ionic liquid, a solid-state electrolyte membrane, a solid-state lithium metal battery, and an apparatus are provided. The supramolecular ionic liquid of this disclosure has a benzophenanthrene structure represented by formula (I), where R1 is selected from ether groups, polyether groups, halogenated ether groups, or halogenated polyether groups having 1 to 16 carbon atoms; and R2 is selected from ether groups or polyether groups having 1 to 16 carbon atoms. The supramolecular ionic liquid of this disclosure has an ionic conductivity as high as 10−3 S/cm at room temperature. A solid-state electrolyte membrane made therefrom also has an ionic conductivity as high as 10−3 S/cm at room temperature. This is close to performance of a liquid electrolyte, proposing a solution to the problem of low ionic conductivity in existing solid-state electrolytes.
-
公开(公告)号：US12113167B2
公开(公告)日：2024-10-08
申请号：US18311904
申请日：2023-05-04
发明人： Bobing Hu , Chengyong Liu , Shangju Liao , Xiaoning He , Wenwen Xue , Zhangdi Xie , Shengyuan Huang , Jieliang Zou
IPC分类号： H01M10/052 , H01M10/0562 , H01M10/0565 , H01M10/0567
CPC分类号： H01M10/0562 , H01M10/052 , H01M10/0565 , H01M10/0567 , H01M2220/20 , H01M2300/0068 , H01M2300/0082 , H01M2300/0091
摘要： A composite electrolyte, including a sulfide electrolyte, a polymer electrolyte, and a functional additive material are provided. In some embodiments, the functional additive material is selected from polymers represented by the following structural R1—O—R2-A. In some embodiments, R1 is selected from at least one of polyvinyl group, polypropylene group, polyacrylate group, polyvinylcarbonate group, polyacrylonitrile group, and polystyrene group; R2 is a straight-chain or branched alkyl group with 3-10 carbon atoms; A is selected from at least one aromatic hydrocarbon group of benzene group, biphenyl group, triphenyl group, naphthalene group, anthracene group, phenanthrene group, and pyrene group; and X is selected from at least one of hydrogen atom, halogen atom, mercapto group, hydroxyl group, amine group, and aldehyde group.
-
公开(公告)号：US20240047736A1
公开(公告)日：2024-02-08
申请号：US18311904
申请日：2023-05-04
发明人： Bobing Hu , Chengyong Liu , Shangju Liao , Xiaoning He , Wenwen Xue , Zhangdi Xie , Shengyuan Huang , Jieliang Zou
IPC分类号： H01M10/0562 , H01M10/0565 , H01M10/0567 , H01M10/052
CPC分类号： H01M10/0562 , H01M10/0565 , H01M10/0567 , H01M10/052 , H01M2220/20 , H01M2300/0091 , H01M2300/0068 , H01M2300/0082
摘要： A composite electrolyte, including a sulfide electrolyte, a polymer electrolyte, and a functional additive material are provided. In some embodiments, the functional additive material is selected from polymers represented by the following structural R1—O—R2-A. In some embodiments, R1 is selected from at least one of polyvinyl group, polypropylene group, polyacrylate group, polyvinylcarbonate group, polyacrylonitrile group, and polystyrene group; R2 is a straight-chain or branched alkyl group with 3-10 carbon atoms; A is selected from at least one aromatic hydrocarbon group of benzene group, biphenyl group, triphenyl group, naphthalene group, anthracene group, phenanthrene group, and pyrene group; and X is selected from at least one of hydrogen atom, halogen atom, mercapto group, hydroxyl group, amine group, and aldehyde group.
-
公开(公告)号：US11876160B2
公开(公告)日：2024-01-16
申请号：US18148126
申请日：2022-12-29
发明人： Xinwei Chen , Zhimin Dan , Chengyong Liu , Wei Zhang , Yizhen Hou , Xian Huang
IPC分类号： H01M10/6571 , H01M10/615 , H01M10/63
CPC分类号： H01M10/6571 , H01M10/615 , H01M10/63
摘要： A heating system includes first and second input ends, first and second battery modules, first switch and second switches, and a control unit. The first switch is connected between first terminals of the first and second battery modules. Second terminals of the first and second battery modules are connected to each other. The second switch is connected between the first input end and the first terminal of the second battery module. The second input end is connected to the first terminal of the first battery module. The first terminals of the first and second battery modules have a same polarity, and the second terminals of the first and second battery modules have a same polarity. The control unit is connected to the first and second switches, and configured to control the first and second switches to be turned on or off.
-
-
-
-
-
-
-
-
-
搜索结果
16 条记录 (耗时 0.017 秒)
