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公开(公告)号：US20230246172A1
公开(公告)日：2023-08-03
申请号：US17746575
申请日：2022-05-17
发明人： Zhe LI , Qili SU , Yong LU , Meiyuan WU , Haijing LIU
IPC分类号： H01M4/36 , H01M4/62 , H01M10/0565 , H01M4/58 , H01M10/0525
CPC分类号： H01M4/366 , H01M4/62 , H01M10/0565 , H01M4/5815 , H01M10/0525 , H01M2004/028
摘要： A positive electrode including an active layer is provided, where the active layer includes a plurality of positive electroactive solid-state particles, a lithium-source material coated on or dispersed with the positive electroactive solid-state particles in the active layer, and a polymeric gel electrolyte at least partially filling voids between the positive electroactive solid-state particles in the active layer. The lithium-source material having a theoretical specific capacity greater than or equal to about 100 mAh/g to less than or equal to about 3,000 mAh/g.
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公开(公告)号：US20230231141A1
公开(公告)日：2023-07-20
申请号：US17884214
申请日：2022-08-09
发明人： Dewen KONG , Meiyuan WU , Haijing LIU , Si CHEN
IPC分类号： H01M4/62
CPC分类号： H01M4/623 , H01M2004/021
摘要： The present disclosure provides an electrode for an electrochemical cell. The electrode includes a polymer binder network and a plurality of electroactive material particles. The polymer binder network includes a plurality of fibers defining the polymer binder network. Each of the plurality of fibers includes a plurality of beads and a plurality of filaments. The plurality of filaments extends from at least a portion of the plurality of beads, respectively. The plurality of electroactive material particles is in voids of the polymer binder network. In certain aspects, the present disclosure provides a single- or double-sided electrode component including a current collector and the electrode.
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公开(公告)号：US20230155113A1
公开(公告)日：2023-05-18
申请号：US17832376
申请日：2022-06-03
发明人： Jingyuan LIU , Haijing LIU , Mark W. VERBRUGGE , Meiyuan WU
IPC分类号： H01M4/36 , H01M4/505 , H01M10/0525
CPC分类号： H01M4/366 , H01M4/505 , H01M10/0525 , H01M2004/028
摘要： Lithium manganese oxide (LMO) particles having a substantially round shape and methods of preparing such LMO particles are provided herein. The method includes, in the presences of a catalyst, calcining (i) a lithium source and a manganese source and/or (ii) a lithium and manganese source to form the LMO particles. Examples of the lithium source include Li2CO3, LiOH, LiNO3, Li2O, and combinations thereof, and examples of the manganese source include MnO2, Mn3O4, and a combination thereof. The lithium and manganese source includes LixMn2O4, where 0.75≤x≤1.25. The catalyst includes one or more transition metal, such as a period 5 transition metal, a period 6 transition metal, a period 7 transition metal, and a combination thereof, an oxide of the one or more transition metal, a salt of the one or more transition metal, or a combination thereof.
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公开(公告)号：US20230046608A1
公开(公告)日：2023-02-16
申请号：US17710900
申请日：2022-03-31
发明人： Qili SU , Zhe LI , Mengyan HOU , Yong LU , Haijing LIU
IPC分类号： H01M10/0565 , H01M10/0525 , H01M4/62
摘要： An electrochemical cell that cycles lithium ions is provided. The electrochemical cell includes a first electrode, a second electrode, and an electrolyte layer disposed between the first electrode and the second electrode. The first electrode includes a first plurality of solid-state electroactive material particles and a first polymeric gel electrolyte, where the first polymeric gel electrolyte includes a first additive. The second electrode includes a second plurality of solid-state electroactive material particles and a second polymeric gel electrolyte that is different from the first polymeric gel electrolyte, where the second polymeric gel electrolyte includes a second additive. The electrolyte layers include a third polymeric gel electrolyte that is different from both the first polymeric gel electrolyte and the second polymeric gel electrolyte.
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公开(公告)号：US20220166031A1
公开(公告)日：2022-05-26
申请号：US17522331
申请日：2021-11-09
发明人： Zhe LI , Xiaochao QUE , Haijing LIU , Yong LU , Meiyuan WU , Thomas A. YERSAK , Mei CAI
IPC分类号： H01M4/80
摘要： The present disclosure provides a solid-state bipolar battery that includes negative and positive electrodes having thicknesses between about 100 μm and about 3000 μm, and a solid-state electrolyte layer disposed between the negative electrode and the positive electrode and having a thickness between about 5 μm and about 100 μm. The first electrode includes a plurality of negative solid-state electroactive particles embedded on or disposed within a first porous material. The second electrode includes plurality of positive solid-state electroactive particles embedded on or disposed within a second porous material that is the same or different from the first porous material. The solid-state bipolar battery includes a first current collector foil disposed on the first porous material, and a second current collector foil disposed on the second porous material. The first and second current collector foils may each have a thickness less than or equal to about 10 μm.
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公开(公告)号：US20210020929A1
公开(公告)日：2021-01-21
申请号：US16514193
申请日：2019-07-17
发明人： Dewen KONG , Yong LU , Mengyan HOU , Zhe LI , Haijing LIU
摘要： Solid-state electrodes and methods of forming solid-state electrodes and batteries are provided. The method includes contacting an electrode precursor with a liquid. The liquid includes one or more precursors of an ionically conductive polymer. The electrode precursor includes a plurality of electroactive particles and a plurality of electrolyte particles disposed on a current collector. A plurality of interparticle pores exists between the electroactive and electrolyte particles. When the electrode precursor is contacted with the liquid, the liquid flows into the interparticle pores. The one or more precursors of the ionically conductive polymer are electropolymerized so as to cause the formation of a polymeric matrix (including the ionically conductive polymer) that surrounds and embeds the plurality of electroactive particles and the plurality of electrolyte particles so as to form the solid-state electrode.
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67.发明申请公开(公告)号：US20200321648A1
公开(公告)日：2020-10-08
申请号：US16906684
申请日：2020-06-19
发明人： Haijing LIU , Zhiqiang YU , Jianyong LIU , Xiaochao QUE , Mark W. VERBRUGGE
IPC分类号： H01M10/04 , H01M4/1315 , H01G11/26 , H01M4/48 , H01G11/30 , H01G11/50 , H01G11/06 , H01G11/10 , H01G11/28 , H01M4/131 , H01M4/136 , H01M4/485 , H01M4/58 , H01M4/66 , H01M10/0525
摘要： Electrodes are formed with a porous layer of particulate electrode material bonded to each of the two major sides of a compatible metal current collector. In one embodiment, opposing electrodes are formed with like lithium-ion battery anode materials or like cathode materials or capacitor materials on both sides of the current collector. In another embodiment, a battery electrode material is applied to one side of a current collector and capacitor material is applied to the other side. In general, the electrodes are formed by combining a suitable grouping of capacitor layers with un-equal numbers of anode and cathode battery layers. One or more pairs of opposing electrodes are assembled to provide a combination of battery and capacitor energy and power properties in a hybrid electrochemical cell. The cells may be formed by stacking or winding rolls of the opposing electrodes with interposed separators.
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公开(公告)号：US20200235444A1
公开(公告)日：2020-07-23
申请号：US16487914
申请日：2017-03-22
发明人： Zhiqiang YU , Haijing LIU , Xiaochao QUE , Dave G. RICH , Saad HASAN , Meiyuan WU
IPC分类号： H01M10/615 , H01M4/66 , H01M4/04 , H01M4/80 , H01M4/75
摘要： Lithium-based and sodium-based batteries and capacitors using metal foil current collectors, coated with porous layers of particles of active electrode materials for producing an electric current, may adapted to produce heat for enhancing output when the cells are required to periodically operate during low ambient temperatures. A self-heating cell may be placed in heat transfer contact with a working cell that is temporarily in a cold environment. Or one or both of the anode current collector and cathode current collectors of a heating cell may be formed with shaped extended portions, uncoated with electrode materials, through which cell current may be passed for resistance heating of the extended current collector areas. These extended current collector areas may be used to heat the working area of the cell in which they are incorporated, or to contact and heat an adjacent working cell.
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公开(公告)号：US20200035998A1
公开(公告)日：2020-01-30
申请号：US16491460
申请日：2017-03-13
发明人： Peng LU , Michael P. BALOGH , Zhiqiang YU , Haijing LIU , Daad B. HADDAD
IPC分类号： H01M4/13915 , H01M4/1315 , H01M4/36 , H01M10/0525 , H01M10/0568 , H01M4/485
摘要： Methods of pretreating an electroactive material comprising lithium titanate oxide (LTO) include contacting a surface of the electroactive material with a pretreatment composition. In one variation, the pretreatment composition includes a salt of lithium fluoride salt selected from the group consisting of: lithium hexafluorophosphate (LiPF6), lithium tetrafluoroborate (LiBF4), and combinations thereof, and a solvent. In another variation, the pretreatment composition includes an organophosphorus compound. In this manner, a protective surface coating forms on the surface of the electroactive material. The protective surface coating comprises fluorine, oxygen, phosphorus or boron, as well as optional elements such as carbon, hydrogen, and listed metals, and combinations thereof.
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公开(公告)号：US20240234811A1
公开(公告)日：2024-07-11
申请号：US18131172
申请日：2023-04-05
发明人： Zhe LI , Qili SU , Meiyuan WU , Yong LU , Haijing LIU
IPC分类号： H01M10/0565 , H01M10/0562
CPC分类号： H01M10/0565 , H01M10/0562 , H01M2300/0085 , H01M2300/0091
摘要： An electrochemical cell that cycles lithium ions includes a positive electrode that includes a positive electroactive material, a negative electrode that includes a negative electroactive material, and a free-standing separating layer disposed between the positive electrode and the negative electrode. The free-standing separating layer includes a gel membrane that includes a polymer host and a liquid electrolyte and an integrated structural component disposed within the gel membrane. The integrated structural component may be selected from the group consisting of: a plurality of solid-state electrolyte particles, a nonwoven material, and a combination thereof.
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