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公开(公告)号：US20240322254A1
公开(公告)日：2024-09-26
申请号：US18608540
申请日：2024-03-18
发明人： Naoki NITTA , Gleb Nikolayevich YUSHIN , Xia CAO , Ji-Guang ZHANG
IPC分类号： H01M10/0569 , H01M4/02 , H01M4/36 , H01M4/38 , H01M4/505 , H01M4/525 , H01M4/583 , H01M4/66 , H01M10/0525
CPC分类号： H01M10/0569 , H01M4/364 , H01M4/386 , H01M4/505 , H01M4/525 , H01M4/583 , H01M4/661 , H01M10/0525 , H01M2004/021 , H01M2004/027 , H01M2004/028
摘要： A lithium-ion battery includes an anode current collector, a cathode current collector, an anode disposed on and/or in the anode current collector, a cathode disposed on and/or in the cathode current collector, and an electrolyte ionically coupling the anode and the cathode. The electrolyte includes (1) a lithium salt composition, (2) a co-solvent composition, and (3) a diluent composition. In some embodiments, the lithium salt composition includes lithium bis(fluorosulfonyl) imide (LiFSI), the co-solvent composition includes dimethyl carbonate (DMC) and/or ethyl propionate (EP), and the diluent composition includes 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluropropyl ether (TTE). In some embodiments, the anode includes composite particles including carbon and silicon, wherein the composite particles include pores and at least some of the silicon is nanosized silicon in the pores.
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公开(公告)号：US20240322244A1
公开(公告)日：2024-09-26
申请号：US18608268
申请日：2024-03-18
IPC分类号： H01M10/0567 , H01M4/133 , H01M4/134 , H01M4/38 , H01M4/587 , H01M4/62 , H01M4/66 , H01M10/0525 , H01M10/0568 , H01M10/0569
CPC分类号： H01M10/0567 , H01M4/133 , H01M4/134 , H01M4/386 , H01M4/587 , H01M4/625 , H01M4/661 , H01M10/0525 , H01M10/0568 , H01M10/0569
摘要： An electrolyte includes (1) a lithium salt composition, (2) a solvent composition, and (3) a diluent composition. In some embodiments, the diluent composition includes at least one alkane compound. In some embodiments, the at least one alkane compound is selected from (1) non-fluorinated alkane compounds characterized by a first molecular formula CpH2p+2, in which p is a first integer between 5 and 20, and (2) fluorinated alkane compounds characterized by a second molecular formula CqHq1Fq2, in which q is a second integer between 4 and 20, q1 is a third positive integer, and q2 is a fourth positive integer, q, q1, and q2 being related by q1+q2=2q+2. A lithium-ion battery including such electrolyte is also disclosed.
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公开(公告)号：US20240313223A1
公开(公告)日：2024-09-19
申请号：US18606437
申请日：2024-03-15
IPC分类号： H01M4/62 , H01M4/38 , H01M4/587 , H01M10/0525
CPC分类号： H01M4/622 , H01M4/386 , H01M4/587 , H01M10/0525
摘要： A method of making a battery electrode is disclosed. In some embodiments, the method includes stages (A1), (A2), and (A3). Stage (A1) includes providing a battery electrode precursor composition. The battery electrode precursor composition includes an electrochemically active material and a polymerizable binder precursor. Stage (A2) includes processing the battery electrode precursor composition to form a battery electrode precursor disposed on and/or in a current collector. Stage (A3) includes transforming the battery electrode precursor to form a battery electrode including a binder. The transforming of the battery electrode precursor includes polymerizing the polymerizable binder precursor in the battery electrode precursor to form the binder. A battery electrode, a lithium-ion battery, and a method of making a lithium-ion battery are also disclosed.
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公开(公告)号：US12046759B2
公开(公告)日：2024-07-23
申请号：US17898050
申请日：2022-08-29
发明人： Gleb Yushin , Justin Yen , Jens Steiger , Eniko Zsoldos , Mareva Fevre , Adam Kajdos , Weimin Wang
IPC分类号： H01M4/38 , H01M4/134 , H01M4/1395 , H01M4/62 , H01M4/66 , H01M4/88 , H01M10/0525
CPC分类号： H01M4/8828 , H01M4/134 , H01M4/1395 , H01M4/386 , H01M4/622 , H01M4/625 , H01M4/661 , H01M4/663 , H01M4/667 , H01M4/668 , H01M10/0525 , Y02E60/10 , Y02E60/50
摘要： In an embodiment, a Li-ion battery electrode comprises a conductive interlayer arranged between a current collector and an electrode active material layer. The conductive interlayer comprises first conductive additives and a first polymer binder, and the electrode active material layer comprises a plurality of active material particles mixed with a second polymer binder (which may be the same as or different from the first polymer binder) and second conductive additives (which may be the same as or different from the first conductive additives). In a further embodiment, the Li-ion battery electrode may be fabricated via application of successive slurry formulations onto the current collector, with the resultant product then being calendared (or densified).
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公开(公告)号：US20240162414A1
公开(公告)日：2024-05-16
申请号：US18541284
申请日：2023-12-15
发明人： Gleb YUSHIN , Gene BERDICHEVSKY
CPC分类号： H01M4/133 , H01M4/0404 , H01M4/0435 , H01M4/134 , H01M4/364 , H01M4/386 , H01M4/587 , H01M10/0525 , H01M2004/021
摘要： In an aspect, a Li-ion cell may comprise a densified electrode exhibiting an areal capacity loading of more than about 4 mAh/cm2. For example, the densified electrode may a first electrode part arranged on a current collector and a second electrode part on top of the first electrode part, the second electrode part of the at least one densified electrode having a higher porosity than the first electrode part of the at least one densified electrode. In some designs, the densified electrode may be fabricated by densifying electrode layers via a pressure roller while maintaining a contacting part of the pressure roller at a temperature that is less than a temperature of the second electrode part. In some designs, the applied pressure is a time-varying (e.g., frequency modulated) pressure. In some designs, a drying time for a slurry to produce the densified electrode may range from around 1-120 seconds.
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公开(公告)号：US20240154092A1
公开(公告)日：2024-05-09
申请号：US18510044
申请日：2023-11-15
发明人： Gleb YUSHIN , Laura GERBER , Adam KAJDOS , Justin YEN , Justin DOANE , Jens STEIGER
IPC分类号： H01M4/134 , H01M4/38 , H01M4/62 , H01M4/66 , H01M4/74 , H01M10/052 , H01M10/0525
CPC分类号： H01M4/134 , H01M4/386 , H01M4/622 , H01M4/625 , H01M4/661 , H01M4/742 , H01M10/052 , H01M10/0525 , H01M2004/027
摘要： In an embodiment, a Li-ion battery cell comprises an anode electrode with an electrode coating that (1) comprises Si-comprising active material particles, (2) exhibits an areal capacity loading in the range of about 3 mAh/cm2 to about 12 mAh/cm2, (3) exhibits a volumetric capacity in the range from about 600 mAh/cc to about 1800 mAh/cc in a charged state of the cell, (4) comprises conductive additive material particles, and (5) comprises a polymer binder that is configured to bind the Si-comprising active material particles and the conductive additive material particles together to stabilize the anode electrode against volume expansion during the one or more charge-discharge cycles of the battery cell while maintaining the electrical connection between the metal current collector and the Si-comprising active material particles.
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公开(公告)号：US20240105984A1
公开(公告)日：2024-03-28
申请号：US18361437
申请日：2023-07-28
发明人： Sepideh PARVINIAN , Indrani BHATTACHARYYA , Michael PAVILONIS , Weimin WANG , Gaurav Rajpal SHARMA , Jens STEIGER
IPC分类号： H01M10/0525 , H01M4/04 , H01M10/0587
CPC分类号： H01M10/0525 , H01M4/0404 , H01M10/0587
摘要： A lithium-ion battery and methods thereof are disclosed. In an aspect, the lithium-ion battery includes an anode component, a cathode component, a separator, and an electrolyte. The anode component includes an anode current collector and a respective anode coating on each side of the anode current collector. An anode coating includes composite particles including carbon and silicon. A mass fraction of the silicon in the composite particles of the anode coatings may be in a range of about 5 wt. % to about 70 wt. % of the anode coatings. The anode component undergoes a maximum areal expansion (Amax) during the multiple charging and discharging cycles. The anode current collector comprises a copper foil, the copper foil being characterized, before the respective anode coatings are formed thereon, by an ultimate tensile stress (UTS) and a strain at the UTS (εUTS).
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公开(公告)号：US11931810B2
公开(公告)日：2024-03-19
申请号：US17656065
申请日：2022-03-23
发明人： Gleb Yushin , Wenqiang Hu , Samik Jhulki , Wenbin Fu , Kostiantyn Turcheniuk
CPC分类号： B22F9/22 , B22F1/0547 , B22F1/062 , B22F9/20 , C07F3/06 , C22C18/00 , B22F2301/30 , B22F2304/05 , B82Y30/00 , B82Y40/00
摘要： Aspects relate to method of zinc-comprising nanowire fabrication, the method comprising forming a starting material comprising zinc metal or zinc metal alloy and at least one reactive metal, and exposing the starting material to one or more alcohols to obtain a reaction product comprising zinc-comprising nanowires, wherein the at least one reactive metal is more reactive than zinc to the one or more alcohols.
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9.发明公开公开(公告)号：US20230343939A1
公开(公告)日：2023-10-26
申请号：US18343208
申请日：2023-06-28
发明人： Gleb Nikolayevich YUSHIN , Bogdan ZDYRKO , Alexander Thomas JACOBS , Eerik Torm HANTSOO , Addison Newcomb SHELTON , Eugene Michael BERDICHEVSKY
CPC分类号： H01M4/366 , H01M4/386 , H01M4/587 , H01M4/583 , H01M10/052
摘要： Battery electrode compositions are provided comprising core-shell composites. Each of the composites may comprise, for example, an active material, a collapsible core, and a shell. The active material may be provided to store and release metal ions during battery operation, whereby the storing and releasing of the metal ions causes a substantial change in volume of the active material. The collapsible core may be disposed in combination with the active material to accommodate the changes in volume. The shell may at least partially encase the active material and the core, the shell being formed from a material that is substantially permeable to the metal ions stored and released by the active material.
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10.发明公开公开(公告)号：US20230282874A1
公开(公告)日：2023-09-07
申请号：US18315245
申请日：2023-05-10
IPC分类号： H01M10/0525 , H01M10/054 , H01M10/44 , H01M10/42 , H01M50/691
CPC分类号： H01M10/0525 , H01M10/054 , H01M10/4235 , H01M10/446 , H01M50/691 , Y02T10/70 , Y10T29/49108
摘要： Metal-ion battery cells are provided that take advantage of the disclosed “doping” process. The cells may be fabricated from anode and cathode electrodes, a separator, and an electrolyte. A metal-ion additive may be incorporated into (i) one or more of the electrodes, (ii) the separator, or (iii) the electrolyte. The metal-ion additive provides additional donor ions corresponding to the metal ions stored and released by anode and cathode active material particles. An activation potential may then be applied to the anode and cathode electrodes to release the additional donor ions into the battery cell.
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