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公开(公告)号：US10522826B2
公开(公告)日：2019-12-31
申请号：US15818635
申请日：2017-11-20
Applicant: Korea Basic Science Institute
Inventor： Jin Bae Lee , Hae Jin Kim , Won Gi Hong , Sang Moon Lee , Yeon Ho Kim
Abstract: The present disclosure relates to manganese oxide nano-rods in the form of a core-shell, in which the manganese oxide nano-rods are formed in a core-shell structure, the core and the shell each include MnxOy, when x of MnxOy of the core is 1 and y is 2, x of MnxOy of the shell is 2 and y is 3, and when x of MnxOy of the core is 2 and y is 3, x of MnxOy of the shell is 1 and y is 2. According to the present disclosure, in the secondary battery using the manganese oxide, the elution of manganese is inhibited and the structural stability of an active material is increased, thereby increasing the capacity and the cycle life at a high temperature.
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公开(公告)号：US11101457B2
公开(公告)日：2021-08-24
申请号：US16182954
申请日：2018-11-07
Applicant: KOREA BASIC SCIENCE INSTITUTE
Inventor： You Na Ko , Hae Jin Kim , Won Gi Hong , Jin Bae Lee
Abstract: The present disclosure provides a process for the production of a cathode active material complex which is used for a lithium secondary battery, comprising the steps of: mixing a lithium metal phosphate with a solvent to prepare a first precursor; mixing the first precursor with a graphene oxide to prepare a second precursor solution; forming droplets from the second precursor solution; and making the droplets into a powder; wherein the formation of the powder is performed by spray pyrolysis method.
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公开(公告)号：US10886532B2
公开(公告)日：2021-01-05
申请号：US16182738
申请日：2018-11-07
Applicant: KOREA BASIC SCIENCE INSTITUTE
Inventor： Jong Guk Kim , Hae Jin Kim , Won Gi Hong , Jin Bae Lee
Abstract: Provided are a cathode active material for a lithium secondary battery which is represented by general formula (1) below and has a nanorod shape, a manufacturing method thereof, and a lithium secondary battery including the same. LiNi1−x−yMnxMyO2 (1)
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