Chemistry Letters · 2017 · 25 citations · 26 references
EngineeringMetallic LiChemistryAqueous BatteryChemical EngineeringLi-ion BatteriesElectrochemical PropertiesMaterials ScienceBattery Electrode MaterialsLithium-ion BatteryLithium-ion BatteriesEnergy StorageThermal EvaporationSolid-state BatteryPre-lithiated Siox SamplesElectrochemistryLi-ion Battery MaterialsMetal AnodeCathode MaterialsSiox Film AnodeElectrochemical Energy StorageBatteriesAnode Materials
An initial irreversible reaction of SiOx as a Li-ion battery anode material must be suppressed to improve the energy density. Pre-lithiation of SiOx film anode by thermal evaporation of Li metal was found effective in compensating for the irreversible reaction, and the amount of Li could be controlled according to the value of x (0.51, 0.68, and 1.02). The pre-lithiated SiOx samples exhibited superior cyclabilities for 30 cycles.
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