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公开(公告)号：US20230163326A1
公开(公告)日：2023-05-25
申请号：US17921110
申请日：2021-04-22
IPC分类号： H01M8/0297 , H01M4/86 , H01M8/0273 , H01M8/0276 , H01M8/083
CPC分类号： H01M8/0297 , H01M4/86 , H01M8/0273 , H01M8/0276 , H01M8/083 , H01M2004/8684 , H01M2004/8689
摘要： The embodiments herein disclose a system (1000) for managing electrical connections with electrodes in a metal-air fuel cell. The system (1000) includes a cell frame (101) and one or more anode array (102). The one or more anode array (102) is detachably provided with the cell frame (101). The one or more anode array (102) comprises one or more anode. One or more air cathode (103) is provided with the cell frame (101). One or more connector (105) connects the one or more air cathode (103) and the one or more anode array (102). A snap mechanism (106) is used for locking and unlocking the one or more anode array (102) to the cell frame (101).
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公开(公告)号：US20230361298A1
公开(公告)日：2023-11-09
申请号：US17528130
申请日：2020-05-14
发明人： AKSHAY VIVEK SINGHAL , ANSHUL KUMAR SHARMA , KUNAL PAUL , ARVIND BHARDWAJ , SYED SHAJAR ALI MAM , HEMANT CHARAYA
CPC分类号： H01M4/583 , H01M4/0404 , H01M4/622 , H01M4/0435
摘要： The various embodiments of the present invention provide a method of fabricating carbon felt based electrodes without any binder additive. A coating of conductive polymer adhesives is applied on the current collector. The carbon felts are placed on either side of the current collector to get an assembly. The assembly comprising current collector and carbon felt is placed between the plates of hot press with predetermined conditions for curing the adhesive applied on the surface of current collector and to obtain sandwich structure of electrode. The sandwich structure of electrode is subjected under a roller and pressed depending on required thickness and porosity of the electrodes. The electrodes are cut into desired shape using electrode cutting die in tailoring process. The prepared carbon felt based electrode illustrates high flexibility and mechanical robustness when compared to carbon felt electrodes that are binder based and brittle in nature.
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公开(公告)号：US20230335834A1
公开(公告)日：2023-10-19
申请号：US18024923
申请日：2021-09-04
CPC分类号： H01M12/02 , H01M4/12 , H01M12/065
摘要： The embodiments of the present invention provide a system for optimizing a performance of metal-air fuel cells. The system includes the metal-air fuel cells comprising a plurality of stacks of metal-air fuel cell units. The plurality of stacks of metal-air fuel cell units are designed to be connected in at least one of a series configuration and a parallel configuration. Each metal-air fuel cell unit comprises at least one metal anode sheet placed between at least two cathodes sheets. One or more cathode electrodes (111) are held together with one of an epoxy and a silicone based elastomer adhesive. The at least one metal anode sheet and the at least two cathode sheets are included in a shell apparatus.
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公开(公告)号：US20200339425A1
公开(公告)日：2020-10-29
申请号：US16959130
申请日：2018-12-27
IPC分类号： C01B32/186 , C23C16/01 , C23C16/26 , C23C16/56 , C23C16/40
摘要： The embodiments herein provide a system and a method for the synthesis of Graphene Quantum Dots (GQDs) for use in applications like nano-electronics, photonics, bio-imaging, energy storage, quantum computing, etc. Cu substrate is placed inside the CVD tube, and the CVD Chamber is sealed. The process parameters for CVD process are set up. Precursor gases injected inside the tube are dissociate to form carbon dimers and trimmers. Upon cooling semi-cyrstalline carbon film deposits inside the CVD tube. Oxidizing gas mixture is injected to convert amorphous C in semi-cyrstalline carbon film to CO2/CO. Graphene Quantum Dots (GQDs) so formed are carried with the gas flow and deposited at the cooler end of tube. The scrapper assembly is inserted in the CVD Tube and the reagent is sprayed inside the tube to disperse these GQDs in the reagent. This dispersion is pumped out of the CVD Chamber.
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5.发明申请公开(公告)号：US20190161412A1
公开(公告)日：2019-05-30
申请号：US16097569
申请日：2017-04-27
发明人： AKSHAY VIVEK SINGHAL , PURNENDU
IPC分类号： C04B35/528 , C04B35/626 , C04B35/628 , C04B35/64 , C04B41/53 , C04B41/00 , C04B41/91 , A24D3/16 , A24F7/04 , A24D3/10 , A24D3/04 , A24D3/06 , B01D53/02
摘要： The embodiments herein provide a filter for cigarette comprising graphene nano-composite based material enclosed in a casing. The filter is reusable and is plugged to any cigarette, or tobacco smoking products. The filter is a stand-alone product or manufactured integrally with each individual cigarette. The filter provides a safe smoking option to tobacco smokers without changing their smoking habits by reducing the tar content and other toxic chemicals in the inhaled smoke. The graphene based nanocomposite filter adsorbs the toxic agents from the smoke (of cigarette, beedi, hookah etc). The filter is fabricated by treating ceramic particles and coating them with carbon particles. The carbon particles are carbonized. The ceramic particles coated with carbon are segregated based on shape and size and treated chemically to convert carbon into graphene under inert conditions. The graphene coated particles are chemically functionalized for improved filtration.
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公开(公告)号：US20230382738A1
公开(公告)日：2023-11-30
申请号：US18232376
申请日：2023-08-10
发明人： AKSHAY VIVEK SINGHAL , ANSHUL KUMAR SHARMA , KUNAL PAUL , ARVIND BHARDWAJ , SYED SHAJAR ALI IMAM , HEMANT CHARAYA
IPC分类号： C01B32/184 , C01B32/194
CPC分类号： C01B32/184 , C01B32/194 , C01P2006/40 , C01P2006/12 , C01P2006/10
摘要： The embodiments herein provide a facile four-step process for the preparation of binder-free graphene felts that are free standing and mechanically robust. The step of deagglomeration of graphene material leads to a uniform size distribution which when combined/integrated with an appropriate moulding technique allows an easy fine tuning of various attributes of graphene felts including electrical conductivity, porosity, surface area, surface morphology and surface functionalization depending on the desired application. Since graphene felts obtained from this process do not incorporate any binder, to achieve better electrical conductivity, electrochemical activity and catalytic and sensing properties compared to conventional graphene felts while not compromising with their mechanical properties.
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公开(公告)号：US20210362124A1
公开(公告)日：2021-11-25
申请号：US17365714
申请日：2021-07-01
发明人： AKSHAY VIVEK SINGHAL
IPC分类号： B01J20/20 , B01J20/28 , B01J20/30 , A24D3/16 , A24D3/10 , A24D3/06 , A24D3/04 , A24F7/04 , B01D53/02
摘要： The embodiments herein provide a filter for cigarette comprising graphene nano-composite based material enclosed in a casing. The filter is reusable and is plugged to any cigarette, or tobacco smoking products. The filter is a stand-alone product or manufactured integrally with each individual cigarette. The filter provides a safe smoking option to tobacco smokers without changing their smoking habits by reducing the tar content and other toxic chemicals in the inhaled smoke. The graphene based nanocomposite filter adsorbs the toxic agents from the smoke of cigarette, beedi, hookah. The filter is fabricated by treating ceramic particles and coating them with carbon particles. The carbon particles are carbonized. The ceramic particles coated with carbon are segregated based on shape and size and treated chemically to convert carbon into graphene under inert conditions. The graphene coated particles are chemically functionalized for improved filtration.
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公开(公告)号：US20210230001A1
公开(公告)日：2021-07-29
申请号：US17259547
申请日：2019-07-09
IPC分类号： C01B32/19 , C01B32/194
摘要： The embodiments herein provide method and system for synthesizing graphene and a plurality of derivatives through a mechanical shearing process. The method comprises synthesizing a ceramic substrate from a ceramic material in particulate form; depositing carbon material on the synthesized ceramic substrate to synthesize graphene ceramic substrate coated with carbonaceous material; dissolving/dispersing the graphene ceramic substrate coated with carbonaceous material in one solvent and perform mechanical shearing to obtain a dispersion solution of graphene and its derivatives. This graphene dispersions is further subjected to ultrasonication to obtain graphene nano-platelets. The embodiments also provide mechanical exfoliation method for the bulk synthesis of doped and functionalized graphene nano-platelets. The doped graphene ceramic composite are subjected to exfoliation with or without simultaneous ultra-sonication for obtaining doped graphene sheet. The exfoliated graphene sheets obtained from doped graphene ceramic composite are subjected to ultra-sonication and centrifugation.
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公开(公告)号：US20220190408A1
公开(公告)日：2022-06-16
申请号：US17347530
申请日：2019-12-16
摘要： The embodiments herein disclose a power backup system comprising a graphene-based metal-air battery (GMAB), and at least one auxiliary power source as a secondary and additional back-up. The GMAB comprises an electrolyte reservoir for storing electrolyte; a pump for pumping the electrolyte to a plurality of cells; a filter, coupled to the pump, for entrapping aluminum oxide particles generated by electrolyte flow through the cells, to free the electrolyte from any metal oxide particle impurities; at least one rotameter coupled to the pump; at least one settling tank to remove metal oxide particles from the electrolyte; at least one buffer tank to replenish the electrolyte to a desired composition; and a mechanical refuelling unit for mechanical retraction of consumed aluminum and insertion of a plurality of fresh aluminum cassettes into the cells simultaneously.
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公开(公告)号：US20220153139A1
公开(公告)日：2022-05-19
申请号：US17347524
申请日：2019-12-16
摘要： A system for extending a range of an electric vehicle includes a graphene-based metal-air battery system (GMABS), an electrolyte management system (EMS), a flow management system (FMS), one or more auxiliary power sources, and a real-time monitoring and feedback system (RMS). The GMABS includes multiple cells electrically connected to each other and filled with an electrolyte for initiating a reaction to generate power. The EMS regulates a temperature of the electrolyte flowing through the cells. The FMS regulates a circulation of the electrolyte in the GMABS. At least one auxiliary power source is connected to the GMABS to receive and deliver the power to components of the electric vehicle. The RMS continuously computes and monitors a state of charge of each auxiliary power source in real time to facilitate a continuous power delivery to the electric vehicle, thereby extending the range of the electric vehicle.
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