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1.发明公开公开(公告)号：US20240313193A1
公开(公告)日：2024-09-19
申请号：US18671345
申请日：2024-05-22
IPC分类号： H01M4/133 , H01M4/02 , H01M10/0525 , H01M50/46
CPC分类号： H01M4/133 , H01M10/0525 , H01M50/46 , H01M2004/021 , H01M2004/027
摘要： A lithium-ion battery includes an electrode with a plurality of channels formed at least partially through its thickness. Each channel has a diameter in a range from 5 μm to 100 μm and/or is spaced apart from another channel by a distance in a range from 10 μm to 200 μm as measured between centerlines of the channels. The electrode may be an anode and includes carbonaceous material such as graphite and/or additional electrochemically active lithium host materials. The battery can be charged at a C-rate greater than 2 C.
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2.发明授权公开(公告)号：US11626583B2
公开(公告)日：2023-04-11
申请号：US16899562
申请日：2020-06-11
IPC分类号： H01M4/133 , H01M10/0525 , H01M50/46 , H01M4/02
摘要： An anode for a lithium ion battery is disclosed includes a first major face, a second major face that, together with the first major face, defines a thickness of the anode, and at least one carbonaceous electrochemically active lithium host material distributed between the first and second major faces of the anode. The at least one carbonaceous electrochemically active lithium host material is selected from the group consisting of graphite, hard carbon, or a blend of graphite and hard carbon. The anode additionally defines a plurality of vertical channels extending at least partially through the thickness of the anode. A lithium-ion batter that includes the disclosed anode and a method of charging a lithium-ion battery that includes the disclosed anode are also disclosed.
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公开(公告)号：US20180013171A1
公开(公告)日：2018-01-11
申请号：US15646327
申请日：2017-07-11
发明人： Jeffrey Sakamoto , Travis Thompson
IPC分类号： H01M10/0562 , H01M4/04 , H01M4/62 , H01M10/0525
摘要： Disclosed is a ceramic material having a formula of LiwAxM2Re3-yOz, wherein w is 5-7.5; wherein A is selected from B, Al, Ga, In, Zn, Cd, Y, Sc, Mg, Ca, Sr, Ba, and any combination thereof; wherein x is 0-2; wherein M is selected from Zr, Hf, Nb, Ta, Mo, W, Sn, Ge, Si, Sb, Se, Te, and any combination thereof; wherein Re is selected from lanthanide elements, actinide elements, and any combination thereof; wherein y is 0.01-0.75; wherein z is 10.875-13.125; and wherein the material has a garnet-type or garnet-like crystal structure. The ceramic garnet based material is ionically conducting and can be used as a solid state electrolyte for an electrochemical device such as a battery or supercapacitor.
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公开(公告)号：US11916187B2
公开(公告)日：2024-02-27
申请号：US16636509
申请日：2018-08-07
发明人： Jeffrey Sakamoto , Travis Thompson , Nathan Taylor
IPC分类号： H01M10/0562 , H01M10/0525 , H01M4/62 , H01M4/38 , H01M4/04 , H01M4/525 , H01M4/505
CPC分类号： H01M10/0562 , H01M4/0471 , H01M4/0485 , H01M4/382 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/0525 , H01M2300/0074
摘要： Disclosed are electrochemical devices, such as lithium ion battery electrodes, lithium ion conducting solid-state electrolytes, and solid-state lithium ion batteries including these electrodes and solid-state electrolytes. Also disclosed are methods for making such electrochemical devices. Also disclosed are composite electrodes for solid state electrochemical devices. The composite electrodes include one or more separate phases within the electrode that provide electronic and ionic conduction pathways in the electrode active material phase.
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公开(公告)号：US20200335816A1
公开(公告)日：2020-10-22
申请号：US16914792
申请日：2020-06-29
IPC分类号： H01M10/0562 , H01M4/13 , H01M4/04 , H01M4/139 , H01M4/505 , H01M4/525 , H01M10/0585
摘要： Disclosed are electrochemical devices, such as lithium ion battery electrodes, lithium ion conducting solid-state electrolytes, and solid-state lithium ion batteries including these electrodes and solid-state electrolytes. Also disclosed are methods for making such electrochemical devices.
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公开(公告)号：US20200280093A1
公开(公告)日：2020-09-03
申请号：US16761592
申请日：2018-11-06
发明人： Jeffrey Sakamoto , Travis Thompson , Nathan Taylor
IPC分类号： H01M10/0562 , H01M10/0525 , H01M10/0567 , H01M4/04 , H01M4/525 , H01M4/505 , H01M4/131 , H01M4/134 , H01M4/36 , C04B35/499
摘要： Disclosed are electrochemical devices, such as lithium ion battery electrodes, lithium ion conducting solid-state electrolytes, and solid-state lithium ion batteries including these electrodes and solid-state electrolytes. Also disclosed are composite electrodes for solid state electrochemical devices. The composite electrodes include one or more separate phases within the electrode that provide electronic and ionic conduction pathways in the electrode active material phase. A method for forming a composite electrode for an electrochemical device is also disclosed. One example method comprises (a) forming a mixture comprising (i) a lithium host material, and (ii) a solid-state conductive material comprising a ceramic material having a crystal structure and a dopant in the crystal structure; and (b) sintering the mixture, wherein the dopant is selected such that the solid-state conductive material retains the crystal structure during sintering with the lithium host material.
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公开(公告)号：US20180301752A1
公开(公告)日：2018-10-18
申请号：US15943312
申请日：2018-04-02
发明人： Jeffrey Sakamoto , Travis Thompson , Asma Sharafi
IPC分类号： H01M10/0562 , H01M10/0585 , H01M10/0525 , H01M4/38 , H01M4/58 , H01M4/525 , H01M4/505 , C01G25/00
摘要： Disclosed are electrochemical devices, such as lithium battery electrodes, lithium ion conducting solid state electrolytes, and solid-state lithium metal batteries including these electrodes and solid state electrolytes. In one embodiment, a method for forming an electrochemical device is disclosed in which a precursor electrolyte is heated to remove at least a portion of a resistive surface region of the precursor electrolyte.
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公开(公告)号：US12125967B2
公开(公告)日：2024-10-22
申请号：US16001407
申请日：2018-06-06
发明人： Jeffrey Sakamoto , Travis Thompson , Asma Sharafi , Nathan Taylor , Neil P. Dasgupta , Eric Kazyak
IPC分类号： H01M10/0562 , H01M4/38 , H01M4/525 , H01M4/58 , H01M10/052 , H01M10/0525 , H01M10/058
CPC分类号： H01M10/0562 , H01M4/382 , H01M4/525 , H01M4/5825 , H01M10/052 , H01M10/0525 , H01M10/058 , H01M2300/0071
摘要： A method is disclosed for suppressing propagation of a metal in a solid state electrolyte during cycling of an electrochemical device including the solid state electrolyte and an electrode comprising the metal. One method comprises forming the solid state electrolyte such that the solid state electrolyte has a structure comprising a plurality of grains of a metal-ion conductive material and a grain boundary phase located at some or all of grain boundaries between the grains, wherein the grain boundary phase suppresses propagation of the metal in the solid state electrolyte during cycling. Another method comprises forming the solid state electrolyte such that the solid state electrolyte is a single crystal.
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公开(公告)号：US10903484B2
公开(公告)日：2021-01-26
申请号：US15793057
申请日：2017-10-25
发明人： Jeffrey Sakamoto , Travis Thompson , Nathan Taylor
IPC分类号： H01M4/1395 , H01M4/38 , H01M4/58 , H01M4/525 , H01M4/139 , H01M4/62 , H01M4/04 , H01M10/052 , H01M4/13 , H01M10/0562 , H01M4/131 , H01M4/1391 , H01M4/505 , H01M4/66 , H01M4/485 , H01M4/587 , H01M4/02
摘要： Disclosed are electrochemical devices and methods for making electrochemical devices such as metal infiltrated electrodes for solid state lithium ion and lithium metal batteries. In one method for forming an electrode, a metal is infiltrated into the pore space of the active material of the electrode providing improved electronic conductivity to the electrode. The electrode may also include a solid-state ion conducting material providing improved ion conductivity to the electrode. Before infiltration of the metal, a stabilization coating may be applied to the active material and/or the solid-state ion conducting material to the stabilize electrode interfaces by slowing, but not eliminating, the chemical reactions that occur at elevated temperatures during sintering of the active material and/or the solid-state ion conducting material forming the electrode.
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10.发明申请公开(公告)号：US20180301751A1
公开(公告)日：2018-10-18
申请号：US15943302
申请日：2018-04-02
发明人： Jeffrey Sakamoto , Travis Thompson , Nathan Taylor
IPC分类号： H01M10/0562 , H01M10/0585 , H01M10/0525
摘要： Disclosed are electrochemical devices, such as lithium battery electrodes, lithium ion conducting solid-state electrolytes, and solid-state lithium metal batteries including these electrodes and solid-state electrolytes. In one disclosed method, a solid state electrolyte material including a precursor layer having a first electronic conductivity is provided; and the precursor layer on the solid state electrolyte material is reduced to an interfacial layer having a second electronic conductivity greater than the first electronic conductivity. Also disclosed is a method of forming a solid state electrolyte for an electrochemical device including an anode comprising an electrochemically active metal, wherein the method comprises providing a solid state electrolyte material, and depositing an interfacial layer comprising a first metal on the surface of the solid state electrolyte material, wherein the electrochemically active metal does not form an alloy with the first metal during cycling or formation of the electrochemical device.
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