公开(公告)号：US10147936B2

公开(公告)日：2018-12-04

申请号：US15295884

申请日：2016-10-17

申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

发明人： Sarah Tolbert ,  Eric Detsi ,  John Cook

IPC分类号： H01M4/13 ,  H01M10/05 ,  H01M4/134 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/04 ,  H01M4/1395 ,  H01M4/02

摘要： A nanoporous tin is disclose, along with a method of fabrication thereof, the tin having a hierarchical nanoporous and mesoporous ligament morphology that exhibits long-term cyclability, particularly when used as anode material in Li-ion. One embodiment of the present technology is a fabrication method to directly produce nanoporous tin in powder form, rather than a monolithic piece of nanoporous metal, so that the NP-Sn powder can be directly integrated into composite electrodes using commercial battery electrode processing techniques.

公开(公告)号：US10680231B2

公开(公告)日：2020-06-09

申请号：US15990650

申请日：2018-05-27

申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

发明人： Sarah Tolbert ,  Eric Detsi ,  Benjamin Lesel

IPC分类号： H01M4/02 ,  H01M8/0232 ,  C25B1/10 ,  C25B9/08 ,  C25B11/04 ,  C25B11/03 ,  C23F1/00 ,  B01J37/06 ,  B01J23/80 ,  B01J23/889 ,  B01J35/10 ,  B01J23/847 ,  B01J23/78 ,  B01J35/00 ,  C22C38/04 ,  C22C38/08 ,  B82Y30/00

摘要： Selective alloy corrosion is used to synthesize a robust and ultrafine mesoporous NiFeMn-based metal/metal oxide oxygen evolving catalyst with ligament and pore sizes in the range of 10 nm and a BET surface area of 43 m2/g. As an oxygen evolving catalyst, the mesoporous catalyst exhibits high stability (>264 hours) at a high current density (500 mA/cm2) with a low overpotential (360 mV) using a moderate electrolyte concentration (1 M KOH). The catalyst is made from non-precious metals and its fabrication is straight forward and directly applicable to large-scale synthesis.

公开(公告)号：US20200266434A1

公开(公告)日：2020-08-20

申请号：US16678156

申请日：2019-11-08

申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

发明人： Sarah Tolbert ,  Benjamin Lesel

IPC分类号： H01M4/505 ,  H01M10/0525 ,  H01M4/04

摘要： Scalable pseudocapacitive cathode materials are provided that can be effectively paired with pseudocapacitive anode materials and used to produce fast charging, long cycle lifetime lithium ion batteries. A sol-gel templating method which forms materials with dissolution resistant surfaces that can avoid capacity loss due to dissolution in high surface area nanostructured LiMn2O4 powders, is also provided. The materials have a long needle-like morphology with dominant surface sites and demonstrate higher capacity and less dissolution than similarly sized materials synthesized with a different structure.

公开(公告)号：US20180351155A1

公开(公告)日：2018-12-06

申请号：US15990650

申请日：2018-05-27

申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

发明人： Sarah Tolbert ,  Eric Detsi ,  Benjamin Lesel

IPC分类号： H01M4/02 ,  H01M8/0232 ,  C22C38/04 ,  C22C38/08

CPC分类号： H01M4/02 ,  B01J23/78 ,  B01J23/80 ,  B01J23/8476 ,  B01J23/8892 ,  B01J35/0033 ,  B01J35/1014 ,  B01J35/1061 ,  B01J37/06 ,  B01J2523/00 ,  B82Y30/00 ,  C22C38/04 ,  C22C38/08 ,  C23F1/00 ,  C25B1/10 ,  C25B9/08 ,  C25B11/035 ,  C25B11/0447 ,  H01M8/0232 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0005 ,  H01M2300/0014 ,  Y02E60/366 ,  B01J2523/72 ,  B01J2523/842 ,  B01J2523/847

摘要： Selective alloy corrosion is used to synthesize a robust and ultrafine mesoporous NiFeMn-based metal/metal oxide oxygen evolving catalyst with ligament and pore sizes in the range of 10 nm and a BET surface area of 43 m2/g. As an oxygen evolving catalyst, the mesoporous catalyst exhibits high stability (>264 hours) at a high current density (500 mA/cm2) with a low overpotential (360 mV) using a moderate electrolyte concentration (1 M KOH). The catalyst is made from non-precious metals and its fabrication is straight forward and directly applicable to large-scale synthesis.

公开(公告)号：US20180016139A1

公开(公告)日：2018-01-18

申请号：US15649163

申请日：2017-07-13

申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

发明人： Sarah Tolbert ,  Eric Detsi

IPC分类号： C01B3/00 ,  C01B6/24 ,  C01F5/00

CPC分类号： C01B3/0031 ,  C01B6/24 ,  C01F5/00 ,  F17C11/005 ,  Y02E60/321

摘要： A solid state hydrogen storage system and materials are provided. Hydrogen storage is provided by the formation of metal hydrides in a nanoporous metal framework. H2 can be effectively released from the hydride that is made directly during the synthesis processes at just 100° C. Dealloying using galvanic corrosion in a metal ion electrolyte and in a hydrogen containing atmosphere is used to create monolithic nanoporous metal frameworks and the simultaneous formation of metal hydrides within the porosity. The nanoporous frameworks have a tunable plasmon resonance and morphology. The system can reversibly store hydrogen in the nanoporous framework using hot electrons generated either by surface plasmons or by exothermic galvanic replacement reactions to form metal hydrides.

公开(公告)号：US20170110717A1

公开(公告)日：2017-04-20

申请号：US15295884

申请日：2016-10-17

申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

发明人： Sarah Tolbert ,  Eric Detsi ,  John Cook

IPC分类号： H01M4/134 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/62

CPC分类号： H01M4/134 ,  H01M4/049 ,  H01M4/1395 ,  H01M4/387 ,  H01M4/622 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021

摘要： A nanoporous tin is disclose, along with a method of fabrication thereof, the tin having a hierarchical nanoporous and mesoporous ligament morphology that exhibits long-term cyclability, particularly when used as anode material in Li-ion. One embodiment of the present technology is a fabrication method to directly produce nanoporous tin in powder form, rather than a monolithic piece of nanoporous metal, so that the NP-Sn powder can be directly integrated into composite electrodes using commercial battery electrode processing techniques.