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公开(公告)号：US20230282806A1
公开(公告)日：2023-09-07
申请号：US18176801
申请日：2023-03-01
发明人： Seung Taek MYUNG , Hee Jae Kim , Sun Kim
CPC分类号： H01M4/244 , H01M10/365 , H01M4/26
摘要： An anode for a zinc metal battery and a zinc metal battery using the same are provided. An anode for a zinc metal battery includes a zinc metal film and a protective layer formed on a surface of the zinc metal film, and the protective layer may be zinc phosphate. Since the protective layer coats the outermost surface of the zinc metal film, direct contact of the zinc metal film with an electrolyte can be prevented. Accordingly, zinc dendrites formed during plating/stripping of zinc ions during charging and discharging of the battery may grow uniformly, and thus, short circuit of the battery may be prevented.
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公开(公告)号：US20230170465A1
公开(公告)日：2023-06-01
申请号：US18090190
申请日：2022-12-28
发明人： Masato YAMADA
CPC分类号： H01M4/244 , H01M4/26 , H01M10/26 , H01M10/28 , H01M2004/027
摘要： An alkaline battery includes a negative electrode. The negative electrode includes a negative electrode active material particle. The negative electrode active material particle includes a center part, a covering layer, and island-form layers. The center part includes zinc as a constituent element. The covering layer covers a surface of the center part and includes gallium as a constituent element. The island-form layers are present on a surface of the covering layer and include indium as a constituent element.
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公开(公告)号：US11482710B2
公开(公告)日：2022-10-25
申请号：US16914789
申请日：2020-06-29
发明人： Evgeniya Freydina
IPC分类号： H01M4/66 , H01M4/62 , H01M10/30 , H01G11/26 , H01G11/36 , H01G11/38 , H01G11/84 , H01M4/24 , H01M4/26 , H01M4/32 , H01M10/26 , H01G11/40 , H01G11/86 , H01M4/04 , H01M4/36 , H01G11/58 , H01M4/02
摘要： Provided herein is a battery and an electrode. The battery may include two electrodes; and an electrolyte, wherein at least one electrode further includes: a nano-scale coated network, which includes one or more first carbon nanotubes electrically connected to one or more second carbon nanotubes to form a nano-scale network, wherein at least one of the one or more second carbon nanotubes is in electrical contact with another of the one or more second carbon nanotubes. The battery may further include an active material coating distributed to cover portions of the one or more first carbon nanotubes and portions of the one or more second carbon nanotubes, wherein a plurality of the one or more second carbon nanotubes are in electrical communication with other second carbon nanotubes under the active material coating. Also provided herein is a method of making a battery and an electrode.
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公开(公告)号：US11437655B2
公开(公告)日：2022-09-06
申请号：US15922530
申请日：2018-03-15
发明人： Zhufang Liu , Dawn Marie Freeman
IPC分类号： H01M10/42 , H01M50/403 , H01M4/12 , H01M4/24 , H01M4/26 , H01M4/62 , H01M6/04 , H01M6/50 , H01M10/24 , H01M10/26 , H01M4/02
摘要： Alkaline electrochemical cells are provided, wherein a long-chain surfactant is included in at least one component of the cell in order to delay anode shutdown. Methods for preparing such cells are also provided.
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公开(公告)号：US11050051B2
公开(公告)日：2021-06-29
申请号：US15115935
申请日：2015-02-03
发明人： Emanuel Peled , Meital Alon , Diana Golodnitsky
IPC分类号： H01M4/26 , H01M10/04 , H01M10/26 , H01M10/28 , H01M4/04 , C01B17/40 , H01M4/46 , H01M4/136 , C01B17/22 , H01M4/134 , H01M4/36 , H01M4/62 , H01M4/58 , H01M4/40 , H01M10/0525 , H01M4/525 , H01M4/485 , H01M4/505 , H01M4/02
摘要： A composition-of-matter comprising a plurality of particles is disclosed herein, the particles comprising a substance reversibly releasing an alkali metal while decreasing in volume and absorbing the alkali metal while increasing in volume. Some or all of the particles are encapsulated within a volume enclosed by a shell or matrix which conducts cations of the alkali metal, wherein a volume of the substance upon maximal absorption of the alkali metal does not exceed the volume enclosed by a shell or matrix. Further disclosed herein is a process for preparing a composition-of-matter by coating particles comprising the aforementioned substance with a conductor of cations of the alkali metal, when the substance is saturated with the alkali metal, as well as electrochemical half cells and batteries including the composition-of-matter.
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公开(公告)号：US10700359B2
公开(公告)日：2020-06-30
申请号：US15899408
申请日：2018-02-20
发明人： Evgeniya Freydina
IPC分类号： H01M4/66 , H01G11/26 , H01G11/36 , H01G11/38 , H01G11/40 , H01M10/26 , H01M10/30 , H01M4/04 , H01M4/24 , H01M4/32 , H01M4/62 , H01G11/84 , H01M4/26 , H01G11/86 , H01M4/36 , H01G11/58 , H01M4/02
摘要： Provided herein is a battery and an electrode. The battery may include two electrodes; and an electrolyte, wherein at least one electrode further includes: a nano-scale coated network, which includes one or more first carbon nanotubes electrically connected to one or more second carbon nanotubes to form a nano-scale network, wherein at least one of the one or more second carbon nanotubes is in electrical contact with another of the one or more second carbon nanotubes. The battery may further include an active material coating distributed to cover portions of the one or more first carbon nanotubes and portions of the one or more second carbon nanotubes, wherein a plurality of the one or more second carbon nanotubes are in electrical communication with other second carbon nanotubes under the active material coating. Also provided herein is a method of making a battery and an electrode.
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公开(公告)号：US10665854B2
公开(公告)日：2020-05-26
申请号：US16116465
申请日：2018-08-29
发明人： Randy Gene Ogg , Michael Roders , Michael Meese
摘要： Provided is a Ni—Fe battery comprising an iron electrode which is preconditioned prior to any charge-discharge cycle. The preconditioned iron electrode used in the Ni—Fe battery is prepared by first fabricating an electrode comprising an iron active material, and then treating the surface of the electrode with an oxidant to thereby create an oxidized surface.
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公开(公告)号：US10418621B2
公开(公告)日：2019-09-17
申请号：US15980088
申请日：2018-05-15
发明人： Randy Gene Ogg , Michael Roders , Michael Meese
摘要： Provided is a process for preparing an electrode comprising an iron active material. The process comprises first fabricating an electrode comprising an iron active material, and then treating the surface of the electrode with an oxidant to thereby create an oxidized surface. The resulting iron electrode is preconditioned prior to any charge-discharge cycle to have the assessable surface of the iron active material in the same oxidation state as in discharged iron negative electrodes active material.
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公开(公告)号：US10232520B2
公开(公告)日：2019-03-19
申请号：US15136847
申请日：2016-04-22
发明人： Paul Albert Christian , Yichun Wang , Nikolay Krastev Iltchev , Kirakodu S. Nanjundaswamy , Jennifer Anne Nelson , Fan Zhang
IPC分类号： H01M4/06 , H01M4/505 , H01M4/525 , B26B21/22 , H01M4/36 , H01M4/42 , H01M6/04 , H01M4/08 , H01M4/50 , B26B21/14 , B26B21/52 , H01M4/26
摘要： A primary battery includes a cathode having a non-stoichiometric metal oxide including transition metals Ni, Mn, Co, or a combination of metal atoms, an alkali metal, and hydrogen; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
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公开(公告)号：US10170764B2
公开(公告)日：2019-01-01
申请号：US13170773
申请日：2011-06-28
申请人： Koji Nara , Mayumi Mikami
发明人： Koji Nara , Mayumi Mikami
IPC分类号： B29C39/02 , H01M4/26 , H01M4/58 , B29C33/38 , B29C33/42 , H01M4/62 , H01M10/052 , H01M4/02 , B29C59/02
摘要： An object is to form a positive electrode active material having small and highly uniform particles by a simple process. A template is formed by forming holes in the template by a nanoimprinting method, and the template is filled with a gel-like LiFePO4 material, whereby small-sized LiFePO4 particles are formed and are used as the positive electrode active material of a secondary battery. The particle size can be reduced to less than 50 nm. Further, when the LiFePO4 particles are sintered, the template may be burned down. By making the particle size of the positive electrode active material smaller than the conventional one, a positive electrode that lithium is injected into and extracted from easily can be manufactured.
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