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公开(公告)号:US11557765B2
公开(公告)日:2023-01-17
申请号:US17114153
申请日:2020-12-07
发明人: Nicolo Brambilla , Jin Yan , Ki T. Park , Ting Du , Xujie Chen , Wanjun Ben Cao
IPC分类号: H01M4/36 , H01M4/62 , H01M4/485 , H01M10/0525 , H01M4/131 , H01M4/525 , C01B32/174 , C08K3/04 , H01M4/505 , H01G11/36 , H01G11/46 , H01G11/50 , H01M4/02
摘要: An electrode active layer is disclosed that includes a network of high aspect ratio carbon elements (e.g., carbon nanotubes, carbon nanotube bundles, graphene flakes, or the like) that provides a highly electrically conductive scaffold that entangles or enmeshes the active material, thereby supporting the layer. A surface treatment can be applied to the high aspect ratio carbon elements to promote adhesion to the active material and any underlying electrode layers improving the overall cohesion and mechanical stability of the active layer. This surface treatment forms only a thin (in some cases even monomolecular) layer on the network, leaving the large void spaces that are free of any bulk binder material and so may instead be filled with active material. The resulting active layer may be formed with excellent mechanical stability even at large thickness and high active material mass loading.
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公开(公告)号:US11848449B2
公开(公告)日:2023-12-19
申请号:US17316037
申请日:2021-05-10
发明人: Nicolo Brambilla , Jin Yan , Ki T. Park , Ting Du , Xujie Chen , Wanjun Ben Cao
IPC分类号: H01M4/62 , H01M4/505 , H01M4/131 , H01M4/36 , H01M4/525 , H01M10/0525 , C08K3/04 , C01B32/174 , H01M4/485 , H01G11/36 , H01G11/46 , H01G11/50 , H01M4/02
CPC分类号: H01M4/621 , C01B32/174 , C08K3/041 , H01M4/131 , H01M4/366 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/622 , H01M4/625 , H01M10/0525 , H01G11/36 , H01G11/46 , H01G11/50 , H01M2004/021
摘要: An electrode active layer is disclosed that includes a network of high aspect ratio carbon elements (e.g., carbon nanotubes, carbon nanotube bundles, graphene flakes, or the like) that provides a highly electrically conductive scaffold that entangles or enmeshes the active material, thereby supporting the layer. A surface treatment can be applied to the high aspect ratio carbon elements to promote adhesion to the active material and any underlying electrode layers improving the overall cohesion and mechanical stability of the active layer. This surface treatment forms only a thin (in some cases even monomolecular) layer on the network, leaving the large void spaces that are free of any bulk binder material and so may instead be filled with active material. The resulting active layer may be formed with excellent mechanical stability even at large thickness and high active material mass loading.
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公开(公告)号:US20210265634A1
公开(公告)日:2021-08-26
申请号:US17316037
申请日:2021-05-10
发明人: Nicolo Brambilla , Jin Yan , Ki T. Park , Ting Du , Xujie Chen , Wenjun Ben Cao
IPC分类号: H01M4/62 , H01M4/131 , H01M4/525 , H01M4/505 , H01M4/36 , H01M10/0525 , C08K3/04 , C01B32/174
摘要: An electrode active layer is disclosed that includes a network of high aspect ratio carbon elements (e.g., carbon nanotubes, carbon nanotube bundles, graphene flakes, or the like) that provides a highly electrically conductive scaffold that entangles or enmeshes the active material, thereby supporting the layer. A surface treatment can be applied to the high aspect ratio carbon elements to promote adhesion to the active material and any underlying electrode layers improving the overall cohesion and mechanical stability of the active layer. This surface treatment forms only a thin (in some cases even monomolecular) layer on the network, leaving the large void spaces that are free of any bulk binder material and so may instead be filled with active material. The resulting active layer may be formed with excellent mechanical stability even at large thickness and high active material mass loading.
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公开(公告)号:US20230352691A1
公开(公告)日:2023-11-02
申请号:US18220067
申请日:2023-07-10
发明人: Nicolo Brambilla , Jin Yan , Ki T. Park , Ting Du , Xujie Chen , Wanjun Ben Cao
IPC分类号: H01M4/62 , H01M4/525 , C08K3/04 , H01M4/36 , H01M10/0525 , C01B32/174 , H01M4/485 , H01M4/131 , H01M4/505 , H01M4/02 , H01G11/46 , H01G11/50 , H01G11/36
CPC分类号: H01M4/621 , H01M4/622 , H01M4/525 , C08K3/041 , H01M4/625 , H01M4/366 , H01M10/0525 , C01B32/174 , H01M4/485 , H01M4/131 , H01M4/505 , H01M2004/021 , H01G11/46 , H01G11/50 , H01G11/36
摘要: Disclosed herein is an energy storage cell comprising a first electrode; a second electrode; a permeable separator disposed between the first electrode and the second electrode; and an electrolyte wetting the first and second electrodes; wherein the first electrode comprises a network of dements defining void spaces within the network; and active material comprising lithium metal oxide disposed in the void spaces within the network and enmeshed in the network; wherein the electrode active layer contains less than 0.1% percent by weight of polymeric binders disposed in the void spaces; and wherein the active layer is greater than 99% by weight active material.
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公开(公告)号:US20230216030A1
公开(公告)日:2023-07-06
申请号:US17927034
申请日:2021-05-24
发明人: Nicolo Brambilla , Wanjun Ben Cao , Xujie Chen , Qianran He , Ki Tae Park , Jin Yan
CPC分类号: H01M4/366 , H01M4/587 , H01M4/386 , H01M4/0404
摘要: Disclosed herein is a composition comprising a shell that is substantially carbon encapsulating a volume that contains a nanoform of silicon and a void space. Disclosed herein too is a method of fabricating a composition comprising combining a nanoform of silicon with a carbon precursor and sintering the combination with a laser.
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公开(公告)号:US20220077455A1
公开(公告)日:2022-03-10
申请号:US17114153
申请日:2020-12-07
发明人: Nicolo Brambilla , Jin Yan , Ki T. Park , Ting Du , Xujie Chen , Wenjun Ben Cao
IPC分类号: H01M4/36 , H01M4/62 , H01M4/485 , H01M10/0525
摘要: An electrode active layer is disclosed that includes a network of high aspect ratio carbon elements (e.g., carbon nanotubes, carbon nanotube bundles, graphene flakes, or the like) that provides a highly electrically conductive scaffold that entangles or enmeshes the active material, thereby supporting the layer. A surface treatment can be applied to the high aspect ratio carbon elements to promote adhesion to the active material and any underlying electrode layers improving the overall cohesion and mechanical stability of the active layer. This surface treatment forms only a thin (in some cases even monomolecular) layer on the network, leaving the large void spaces that are free of any bulk binder material and so may instead be filled with active material. The resulting active layer may be formed with excellent mechanical stability even at large thickness and high active material mass loading.
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公开(公告)号:US20230155116A1
公开(公告)日:2023-05-18
申请号:US17986077
申请日:2022-11-14
发明人: Wanjun Ben Cao , Nicolo Brambilla , Ji Chen , Kitae Park , Jin Yan , Susheel KALABATHULA , Wyatt ANDREE , Ting Du , Xujie Chen
CPC分类号: H01M4/366 , H01M4/386 , H01M4/587 , H01M4/622 , H01M2004/027
摘要: Disclosed herein is an anode, comprising an active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; a plurality of electrode active material particles disposed in the void spaces within the network, wherein the active material particles comprise silicon; and a polymeric additive, the polymeric additive being at least one of (i) selected from a family of polyamides, or (ii) a modified polyamide or derivative of a polyamide. Disclosed herein too is a cathode, comprising an active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; a plurality of electrode active material particles disposed in the void spaces within the network; and a polymeric additive, the polymeric additive being at least one of (i) selected from a family of polyamides, or (ii) a modified polyamide or derivative of a polyamide.
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公开(公告)号:US20230015888A1
公开(公告)日:2023-01-19
申请号:US17948644
申请日:2022-09-20
发明人: Nicolo Brambilla , Jin Yan , Ki T. Park , Ting Du , Xujie Chen , Wanjun Ben Cao
IPC分类号: H01M4/62 , H01M4/131 , H01M4/525 , C01B32/174 , H01M10/0525 , C08K3/04 , H01M4/505 , H01M4/36 , H01M4/485
摘要: Disclosed herein is an apparatus comprising an electrode active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; a plurality of electrode active material particles disposed in the void spaces within the network and enmeshed in the network; and a surface treatment on the surface of the high aspect ratio carbon elements which promotes adhesion between the high aspect ratio carbon elements and the active material particles.
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