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公开(公告)号：US20180301764A1
公开(公告)日：2018-10-18
申请号：US16013739
申请日：2018-06-20
Applicant: HONDA MOTOR CO., LTD. , CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Nam Hawn CHOU , Kaoru OMICHI , Ryan MCKENNEY , Qingmin XU , Christopher BROOKS , Simon C. JONES , Isabelle M. DAROLLES , Hongjin TAN
Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. The fluoride-conducting encapsulant may comprise one or more metals. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.
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公开(公告)号：US20220037652A1
公开(公告)日：2022-02-03
申请号：US17502246
申请日：2021-10-15
Applicant: HONDA MOTOR CO., LTD. , CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Nam Hawn CHOU , Kaoru OMICHI , Ryan MCKENNEY , Qingmin XU , Christopher BROOKS , Simon C. JONES , Isabelle M. DAROLLES , Hongjin TAN
Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.
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公开(公告)号：US20220093918A1
公开(公告)日：2022-03-24
申请号：US17541838
申请日：2021-12-03
Applicant: HONDA MOTOR CO., LTD. , CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Nam Hawn CHOU , Kaoru OMICHI , Ryan MCKENNEY , Qingmin XU , Christopher BROOKS , Simon C. JONES , Isabelle M. DAROLLES , Hongjin TAN
Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.
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