A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SILICON-SILICON COMPOSITE OXIDE-CARBON COMPOSITE, METHOD FOR PREPARING SAME, AND NEGATIVE ELECTRODE ACTIVE MATERIAL COMPRISING SAME
The present invention provides a silicon-silicon composite oxide-carbon composite, a method for preparing same, and a negative electrode active material for a lithium secondary battery, comprising same. More particularly, the silicon-silicon composite oxide-carbon composite of the present invention has a core-shell structure wherein the core comprises silicon, a silicon oxide compound, and magnesium silicate, and the shell comprises a carbon layer. In addition, by having a specific range of span values through the adjustment of particle size distribution of the composite, when used as a negative electrode active material of a secondary battery, the composite can improve not only the capacity of the secondary battery but also the cycle characteristics and initial efficiency thereof.
SILICON-SILICON COMPOSITE OXIDE-CARBON COMPOSITE, METHOD FOR PREPARING SAME, AND NEGATIVE ELECTRODE ACTIVE MATERIAL COMPRISING SAME
The present invention provides a silicon-silicon composite oxide-carbon composite, a method for preparing same, and a negative electrode active material for a lithium secondary battery, comprising same. More particularly, the silicon-silicon composite oxide-carbon composite of the present invention has a core-shell structure wherein the core comprises silicon, a silicon oxide compound, and magnesium silicate, and the shell comprises a carbon layer. In addition, by having a specific range of span values through the adjustment of particle size distribution of the composite, when used as a negative electrode active material of a secondary battery, the composite can improve not only the capacity of the secondary battery but also the cycle characteristics and initial efficiency thereof.
SILICON-SILICON COMPOSITE OXIDE-CARBON COMPOSITE, METHOD FOR PREPARING SAME, AND NEGATIVE ELECTRODE ACTIVE MATERIAL COMPRISING SAME
LEE EORANG (author) / PARK HEONSOO (author) / LIM SUNG WOO (author) / OH SEUNG MIN (author) / LIM JONG CHAN (author)
2023-02-16
Patent
Electronic Resource
English
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