Coating particles of active electrode material for lithium secondary batteries

    公开(公告)号:US10312499B2

    公开(公告)日:2019-06-04

    申请号:US15508138

    申请日:2014-09-08

    摘要: Particles of active electrode material for a lithium secondary battery are coated with a precursor material which is either a carbon-based polymer or a metal and oxygen containing compound. The precursor material-coated particles are injected into a gas stream and momentarily exposed to an atmospheric plasma at a predetermined energy level and temperature up to about 3500° C. The plasma treatment converts (i) the carbon polymer to submicron size carbon particles or (ii) the metal compound to metal oxide particles on the surfaces of the particles of electrode material. In preferred embodiments of the invention the plasma treated coated active electrode material particles are carried by the gas stream and deposited onto an electrode material bearing substrate for a lithium battery cell.

    COATING PARTICLES OF ACTIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERIES

    公开(公告)号:US20170309888A1

    公开(公告)日:2017-10-26

    申请号:US15508138

    申请日:2014-09-08

    摘要: Particles of active electrode material for a lithium secondary battery are coated with a precursor material which is either a carbon-based polymer or a metal and oxygen containing compound. The precursor material-coated particles are injected into a gas stream and momentarily exposed to an atmospheric plasma at a predetermined energy level and temperature up to about 3500° C. The plasma treatment converts (i) the carbon polymer to submicron size carbon particles or (ii) the metal compound to metal oxide particles on the surfaces of the particles of electrode material. In preferred embodiments of the invention the plasma treated coated active electrode material particles are carried by the gas stream and deposited onto an electrode material bearing substrate for a lithium battery cell.

    PLASMA COATING FOR CORROSION PROTECTION OF LIGHT-METAL COMPONENTS IN BATTERY FABRICATION
    9.
    发明申请
    PLASMA COATING FOR CORROSION PROTECTION OF LIGHT-METAL COMPONENTS IN BATTERY FABRICATION 审中-公开
    用于电池制造中轻金属部件的腐蚀保护的等离子涂层

    公开(公告)号:US20160126509A1

    公开(公告)日:2016-05-05

    申请号:US14895282

    申请日:2013-06-04

    摘要: A method is disclosed for making a lithium-ion electrochemical cell comprising elements of the lithium-ion electrochemical cell contained within an aluminum alloy or magnesium alloy single-cell container. External surfaces of the container are coated for resistance to water-based corrosion. Rolled or folded layers of anode, cathode, and separator elements of the lithium-ion cell are placed in the aluminum or magnesium alloy container. And, with the placed elements of the lithium-ion cell in the container, and during one or more following steps of a manufacturing assembly process of the lithium-ion cell, an atmospheric pressure plasma stream, initially comprising hexamethyldisiloxane, is applied to external surfaces of the aluminum alloy or magnesium alloy container to form a silicone polymer coating on the surfaces that protects the container from water-based corrosion. The method is useful in forming batteries for automotive vehicles exposed to salt water environments.

    摘要翻译: 公开了一种用于制造锂离子电化学电池的方法,所述锂离子电化学电池包含铝合金或镁合金单电池容器内的锂离子电化学电池元件。 涂覆容器的外表面以防止水性腐蚀。 将锂离子电池的阳极,阴极和隔板元件的折叠或折叠层放置在铝或镁合金容器中。 并且,将锂离子电池的放置元件放置在容器中,并且在锂离子电池的制造组装过程的一个或多个后续步骤中,将初始包含六甲基二硅氧烷的大气压等离子体流施加到外部表面 的铝合金或镁合金容器,以在保护容器免受水基腐蚀的表面上形成硅氧烷聚合物涂层。 该方法可用于形成暴露于盐水环境的汽车的电池。