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公开(公告)号:US20130202959A1
公开(公告)日:2013-08-08
申请号:US13749960
申请日:2013-01-25
Applicant: Massachusetts Institute of Technology , A123 Systems, Inc.
Inventor: Yet-Ming Chiang , Benjamin Hellweg , Richard K. Holman , Steven M. Tobias , Dong-Wan Kim , Ryan C. Wartena
CPC classification number: H01M4/0457 , C25D13/00 , C25D17/00 , G02F1/1523 , G02F2001/1555 , H01G11/26 , H01G11/56 , H01G11/64 , H01M4/02 , H01M4/0438 , H01M4/08 , H01M4/139 , H01M4/525 , H01M4/661 , H01M4/808 , H01M6/18 , H01M6/181 , H01M6/40 , H01M10/04 , H01M10/0436 , H01M10/0472 , H01M10/052 , H01M10/0525 , H01M10/0565 , H01M10/058 , H01M10/44 , H01M2004/021 , H01M2004/025 , Y02E60/13
Abstract: Methods are provided for making bipolar electrochemical devices, such as batteries, using electrophoresis. A bipolar device is assembled by applying a field that creates a physical separation between two active electrode materials, without requiring insertion of a discrete separator film or electrolyte layer.
Abstract translation: 提供用于制造双极电化学装置的方法,例如使用电泳的电池。 通过施加在两个活性电极材料之间产生物理分离的场,而不需要插入离散的隔膜或电解质层来组装双极器件。
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公开(公告)号:US20250162942A1
公开(公告)日:2025-05-22
申请号:US18406058
申请日:2024-01-05
Applicant: Massachusetts Institute of Technology
Inventor: Yet-Ming Chiang , Camden Hunt , Jacqueline Prawira , Benjamin Mowbray
IPC: C04B22/12
Abstract: Disclosed herein are silicates and/or salts and methods of production and uses thereof. For example, methods of producing an amorphous silicate and/or a salt from materials comprising silicates are disclosed. As another example, use of silicates and/or salts in the formation of cementitious materials is also disclosed.
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公开(公告)号:US20250100927A1
公开(公告)日:2025-03-27
申请号:US18971207
申请日:2024-12-06
Applicant: Massachusetts Institute of Technology
Inventor: Yet-Ming Chiang , Leah Ellis , Andres Badel
Abstract: Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients (e.g., spatially varying pH gradients), and associated systems and methods, are generally described.
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公开(公告)号:US12252795B2
公开(公告)日:2025-03-18
申请号:US18395422
申请日:2023-12-22
Applicant: Massachusetts Institute of Technology
Inventor: Yet-Ming Chiang , Leah Ellis , Andres Badel , Isaac W. Metcalf
Abstract: Chemical reaction devices involving acid and/or base, and related systems and methods, are generally described.
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公开(公告)号:US20230330724A1
公开(公告)日:2023-10-19
申请号:US18017114
申请日:2021-07-21
Inventor: Yet-Ming Chiang , Leah Ellis , Sophie C. Coppieters 't Wallant , Sonia Zhang , Venkatasubramanian Viswanathan , Elsa A. Olivetti , Michael Joseph Wang
CPC classification number: B09B3/70 , C25D17/12 , C25D3/46 , C25D3/48 , C25D3/50 , C25D5/48 , B09B2101/30
Abstract: Disclosed herein are systems and methods for processing ash. For example, in certain embodiments, the method comprises dissolving at least a portion of ash in acid. In some embodiments, the acid is produced in a reactor. In some embodiments, dissolving at least a portion of ash in acid produces refined silica (SiO2) (e.g., amorphous silica, substantially pure silica, and/or a substantial amount of silica). According to certain embodiments, the ash can be further processed (e.g., using electro winning, pH-based precipitation, and/or electrorefining) to obtain other components instead of or in addition to refined silica.
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公开(公告)号:US11418066B2
公开(公告)日:2022-08-16
申请号:US16995689
申请日:2020-08-17
Applicant: Massachusetts Institute of Technology
Inventor: Yet-Ming Chiang , Bohua Wen
Abstract: Described herein are techniques that increase the charging and/or discharging rate of a rechargeable battery, at least in part, by using frequency modulated (FM) signals having a frequency in the megahertz (MHz) frequency range. In some embodiments, the MHz frequency range may include any frequency between 0.1 MHz and 1 gigahertz (GHz). In some embodiments, a battery charger described herein may be configured to generate and transmit, to a battery, an FM signal modulated over a frequency range during a period of time, the FM signal having a frequency of at least 0.5 MHz during at least a first portion of the period of time. In some embodiments, a method described herein includes transmitting an FM signal modulated over a frequency range during a period of time and having a frequency of at least 0.5 MHz during at least a first portion of the period of time to a battery.
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公开(公告)号:US11342567B2
公开(公告)日:2022-05-24
申请号:US16252088
申请日:2019-01-18
Inventor: Yet-Ming Chiang , William Craig Carter , Mihai Duduta , Pimpa Limthongkul
IPC: H01M8/0234 , H01M8/0206 , H01M8/0215 , H01M8/0221 , H01M8/0228 , B60L50/64 , H01M8/18 , H01M8/20
Abstract: Redox flow devices are described including a positive electrode current collector, a negative electrode current collector, and an ion-permeable membrane separating said positive and negative current collectors, positioned and arranged to define a positive electroactive zone and a negative electroactive zone; wherein at least one of said positive and negative electroactive zone comprises a flowable semi-solid composition comprising ion storage compound particles capable of taking up or releasing said ions during operation of the cell, and wherein the ion storage compound particles have a polydisperse size distribution in which the finest particles present in at least 5 vol % of the total volume, is at least a factor of 5 smaller than the largest particles present in at least 5 vol % of the total volume.
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公开(公告)号:US20220145477A1
公开(公告)日:2022-05-12
申请号:US17438888
申请日:2020-03-13
Applicant: Massachusetts Institute of Technology
Inventor: Yet-Ming Chiang , Leah Ellis , Andres Badel , Isaac W. Metcalf
Abstract: Chemical reaction devices involving acid and/or base, and related systems and methods, are generally described.
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公开(公告)号:US10992003B2
公开(公告)日:2021-04-27
申请号:US15957027
申请日:2018-04-19
Applicant: Massachusetts Institute of Technology
Inventor: Liang Su , Zheng Li , Yet-Ming Chiang , Menghsuan Sam Pan
IPC: H01M8/18 , H01J7/00 , H01M4/92 , H01M12/08 , H01M4/90 , H01M4/96 , H01M4/86 , H01M4/36 , H01M12/02 , H02J7/00
Abstract: An electrochemical apparatus includes a catholyte, an anolyte, and a separator disposed between the catholyte and the anolyte. The catholyte includes metal salt dissolved in water, thereby providing at least one metal ion. The anolyte includes a polysulfide solution. The separator is permeable to the at least one metal ion. During a charging process of the electrochemical apparatus, oxygen is generated in the catholyte, the polysulfide in the polysulfide solution undergoes a reduction reaction in the anolyte, and the at least one metal ion moves from the catholyte to the anolyte. During a discharging process of the apparatus, the oxygen is consumed in the catholyte, the polysulfide oxidizes in the anolyte, and the at least one metal ion moves from the anolyte to the catholyte.
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公开(公告)号:US09947481B2
公开(公告)日:2018-04-17
申请号:US14744792
申请日:2015-06-19
Applicant: Massachusetts Institute of Technology
Inventor: Brian Richmond Solomon , Xinwei Chen , Yet-Ming Chiang , Kripa K. Varanasi
IPC: H01G9/145 , H01G9/035 , H01G9/048 , H01M12/06 , H01M10/052 , H01M10/36 , H01M8/12 , H01M8/18 , H01M10/02 , H01M8/02 , C09D5/03
CPC classification number: H01G9/145 , C09D5/037 , H01G9/035 , H01G9/048 , H01G11/06 , H01G11/26 , H01G11/38 , H01G11/64 , H01M8/02 , H01M8/12 , H01M8/188 , H01M10/02 , H01M10/052 , H01M10/36 , H01M12/06
Abstract: In certain embodiments, the invention relates to an electrochemical device having a liquid lubricant impregnated surface. At least a portion of the interior surface of the electrochemical device includes a portion that includes a plurality of solid features disposed therein. The plurality of solid features define a plurality of regions therebetween. A lubricant is disposed in the plurality of regions which retain the liquid lubricant in the plurality of regions during operation of the device. An electroactive phase comes in contact with at least the portion of the interior surface. The liquid lubricant impregnated surface introduces a slip at the surface when the electroactive phase flows along the surface. The electroactive phase may be a yield stress fluid.
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