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公开(公告)号：US20220223917A1
公开(公告)日：2022-07-14
申请号：US17144754
申请日：2021-01-08
发明人： Hui He , Bor Z. Jang
IPC分类号： H01M10/0569 , H01M10/0525 , H01M10/0562 , H01M10/0567 , H01M4/66 , H01M4/525 , H01M4/505 , H01M4/583
摘要： An electrolyte, comprising: (a) a polymer, which is a polymerization or crosslinking product of a reactive additive, wherein the reactive additive comprises at least one reactive polymer, reactive oligomer, or reactive monomer and a curing agent or initiator and wherein the reactive polymer, oligomer, or monomer comprises at least a reactive carboxylic and/or a hydroxyl group; (b) a lithium salt; and (c) an organic liquid solvent or ionic liquid. The polymer preferably comprises a cross-linked network of chains from poly (acrylic acid), poly(vinyl alcohol), polyethylene glycol, carboxymethyl cellulose, or a combination thereof. Also provided is a lithium battery comprising such an electrolyte.
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公开(公告)号：US20220199977A1
公开(公告)日：2022-06-23
申请号：US17128798
申请日：2020-12-21
发明人： Hui He , Bor Z. Jang
IPC分类号： H01M4/36 , H01M4/62 , H01M10/0525
摘要： A composite particulate for a lithium battery, wherein the composite particulate has a diameter from 10 nm to 50 μm and comprises one or more than one anode active material particles that are dispersed in a high-elasticity polymer matrix or encapsulated by a high-elasticity polymer shell, wherein said high-elasticity polymer matrix or shell has a recoverable elastic tensile strain no less than 5%, when measured without an additive or reinforcement dispersed therein, and a lithium ion conductivity no less than 10−8 S/cm at room temperature and wherein said high-elasticity polymer comprises a crosslinked polymer network of chains from carboxymethyl cellulose (CMC), a substituted version thereof, or a derivative thereof.
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公开(公告)号：US20220069313A1
公开(公告)日：2022-03-03
申请号：US17005609
申请日：2020-08-28
发明人： Hui He , Aruna Zhamu , Hao-Hsun Chang , Bor Z. Jang
摘要： Provided is an anode electrode (e.g. a layer or roll of a laminated structure) for a lithium battery or sodium battery, the anode electrode comprising: (a) an anode current collector having two primary surfaces; (b) multiple particles or coating of a lithium-attracting metal or sodium-attracting metal deposited on at least one of the two primary surfaces, wherein the lithium-attracting metal or sodium-attracting metal, having a diameter or thickness from 1 nm to 10 μm, is selected from Au, Ag, Mg, Zn, Ti, K, Al, Fe, Mn, Co, Ni, Sn, V, Cr, an alloy thereof, or a combination thereof; and (c) a layer of graphene that covers and protects the multiple particles or coating of the metal. Also provided is a process for producing such an anode electrode and a battery cell.
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公开(公告)号：US20210344038A1
公开(公告)日：2021-11-04
申请号：US16861495
申请日：2020-04-29
发明人： Hui He , Aruna Zhamu , Bor Z. Jang
IPC分类号： H01M10/0562 , H01M10/0525 , H01M10/0569 , H01M10/0567 , H01M2/16
摘要： Provided is a method of producing a non-flammable quasi-solid electrolyte for a lithium battery, the method comprising (A) dissolving a lithium salt in a first liquid solvent to obtain a mixture having a first concentration of lithium salt less than 3.0 M (mole/L), but greater than 0.001M; and (B) removing a portion of the first liquid solvent to obtain the quasi-solid electrolyte having a final lithium salt concentration higher than the first concentration so that the electrolyte exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a vapor pressure less than 60% of the vapor pressure of the first liquid solvent alone, a flash point at least 20 degrees Celsius higher than a flash point of the first liquid solvent alone, a flash point higher than 150° C., or no detectable flash point.
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5.发明申请公开(公告)号：US20210344037A1
公开(公告)日：2021-11-04
申请号：US16861485
申请日：2020-04-29
发明人： Hui He , Aruna Zhamu , Bor Z. Jang
IPC分类号： H01M10/0562 , H01M10/0525 , H01M10/0569 , H01M2/14 , H01M10/0567
摘要： Provided is apparatus for introducing a quasi-solid electrolyte into one or a plurality of lithium battery cells, the apparatus comprising: (a) a cell-holding device to hold one or a plurality of lithium battery cells and is in a working relation to a liquid electrolyte-filling device that injects a liquid electrolyte into the battery cells, wherein the liquid electrolyte comprises a lithium salt dissolved in a first liquid solvent having a first lithium salt concentration from 0.001 M to 3.0 M (mole/L); and (b) a solvent vapor-removing device in a working relation to the cell-holding device, wherein the vapor-removing device comprises a pumping device to move solvent vapors away from the battery cells so that the electrolyte has a final lithium salt concentration higher than the first concentration and higher than 2.0 M. Also provided is a method of operating the apparatus.
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公开(公告)号：US10978744B2
公开(公告)日：2021-04-13
申请号：US16126745
申请日：2018-09-10
发明人： Hui He , Aruna Zhamu , Bor Z. Jang
IPC分类号： H01M10/0585 , H01M4/04 , H01M2/14 , H01M10/052 , H01M4/62 , H01M4/36 , H01M4/38 , H01M4/02
摘要： The invention provides a method of improving the anode stability and cycle-life of an alkali metal-sulfur. The method comprises implementing two anode-protecting layers between an anode active material layer and an electrolyte or electrolyte/separator assembly. These two layers comprise (a) a first anode-protecting layer, in physical contact with the anode active material layer, having a thickness from 1 nm to 100 μm and comprising a thin layer of an electron-conducting material having a specific surface area greater than 50 m2/g; and (b) a second anode-protecting layer in physical contact with the first anode-protecting layer, having a thickness from 1 nm to 100 μm and comprising an elastomer having a fully recoverable tensile elastic strain from 2% to 1,000% and a lithium ion conductivity from 10−8 S/cm to 5×10−2 S/cm when measure at room temperature.
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公开(公告)号：US20210098778A1
公开(公告)日：2021-04-01
申请号：US17063666
申请日：2020-10-05
发明人： Hui He , Bor Z. Jang
摘要： Provided is highly elastic polymer composite binder composition for use in an anode or cathode of a lithium battery, the composition comprising a polymerizing or cross-linking liquid precursor and a 0.01%-50% by weight of a conductive reinforcement material dispersed in the liquid precursor, wherein the liquid precursor is capable of chemically bonding to an anode active material or cathode active material in the lithium battery upon completion of polymerization or cross-linking reactions to form a high-elasticity polymer and the resulting high-elasticity polymer has a recoverable tensile strain from 5% to 700% when measured without the conductive reinforcement dispersed in the polymer.
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公开(公告)号：US11990608B2
公开(公告)日：2024-05-21
申请号：US17063666
申请日：2020-10-05
发明人： Hui He , Bor Z. Jang
CPC分类号： H01M4/364 , H01M4/366 , H01M4/38 , H01M4/386 , H01M4/387 , H01M4/405 , H01M4/485 , H01M4/62 , H01M4/622 , H01M4/625 , H01M10/0525 , H01M2004/021 , H01M2004/027 , H01M12/08 , H01M2300/0068 , H01M2300/0082 , H01M2300/0091 , Y02E60/10
摘要： Provided is highly elastic polymer composite binder composition for use in an anode or cathode of a lithium battery, the composition comprising a polymerizing or cross-linking liquid precursor and a 0.01%-50% by weight of a conductive reinforcement material dispersed in the liquid precursor, wherein the liquid precursor is capable of chemically bonding to an anode active material or cathode active material in the lithium battery upon completion of polymerization or cross-linking reactions to form a high-elasticity polymer and the resulting high-elasticity polymer has a recoverable tensile strain from 5% to 700% when measured without the conductive reinforcement dispersed in the polymer.
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9.发明授权公开(公告)号：US11916189B2
公开(公告)日：2024-02-27
申请号：US16861485
申请日：2020-04-29
发明人： Hui He , Aruna Zhamu , Bor Z. Jang
IPC分类号： H01M10/0562 , H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M50/403 , H01M50/609
CPC分类号： H01M10/0562 , H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M50/403 , H01M50/609 , H01M2300/0034
摘要： Provided is apparatus for introducing a quasi-solid electrolyte into one or a plurality of lithium battery cells, the apparatus comprising: (a) a cell-holding device to hold one or a plurality of lithium battery cells and is in a working relation to a liquid electrolyte-filling device that injects a liquid electrolyte into the battery cells, wherein the liquid electrolyte comprises a lithium salt dissolved in a first liquid solvent having a first lithium salt concentration from 0.001 M to 3.0 M (mole/L); and (b) a solvent vapor-removing device in a working relation to the cell-holding device, wherein the vapor-removing device comprises a pumping device to move solvent vapors away from the battery cells so that the electrolyte has a final lithium salt concentration higher than the first concentration and higher than 2.0 M. Also provided is a method of operating the apparatus.
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公开(公告)号：US11699787B2
公开(公告)日：2023-07-11
申请号：US17122499
申请日：2020-12-15
发明人： Yu-Sheng Su , Minjie Li , Hui He , Qing Fang , Aruna Zhamu , Bor Z. Jang
IPC分类号： H01M4/00 , H01M4/52 , H01M4/38 , H01M4/58 , H01M6/14 , H01M10/36 , H01M4/62 , H01M10/052 , H01M4/50 , H01M10/054 , H01M4/46 , H01M4/48 , H01M6/04
CPC分类号： H01M4/523 , H01M4/38 , H01M4/381 , H01M4/382 , H01M4/463 , H01M4/466 , H01M4/483 , H01M4/502 , H01M4/5815 , H01M4/625 , H01M6/04 , H01M6/14 , H01M10/052 , H01M10/054 , H01M10/36 , Y02T10/70
摘要： An electrochemical battery cell comprising an anode having a primary anode active material, a cathode, and an ion-conducting electrolyte, wherein the cell has an initial output voltage, Vi, measured at 10% depth of discharge (DoD), selected from a range from 0.3 volts to 0.8 volts, and a final output voltage Vf measured at a DoD no greater than 90%, wherein a voltage variation, (Vi−Vf)/Vi, is no greater than ±10% and the specific capacity between Vi and Vf is no less than 100 mAh/g or 200 mAh/cm3 based on the cathode active material weight or volume, and wherein the primary anode active material is selected from lithium (Li), sodium (Na), potassium (K), magnesium (Mg), aluminum (Al), zinc (Zn), titanium (Ti), manganese (Mn), iron (Fe), vanadium (V), cobalt (Co), nickel (Ni), a mixture thereof, an alloy thereof, or a combination thereof.
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