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The performance of a lithium-ion battery (LiB) fabricated with a tin-phosphate glass anode was studied as well as the characteristics of the anode. It was confirmed that the total positive charge of Sn2+ ions in the glass anode is compensated by a reaction with lithium during the first charge by forming tin crystals. It was observed after the first charge that the glass is converted into a nanocomposite in which the metallic crystals are embedded in an amorphous lithium phosphate matrix. A half-cell fabricated with the glass anode showed a reproducible capacity of 550 mAh/g at room temperature, which was much higher than that of the cell with a graphite anode. The cell also showed a steady capacity of 160 mAh/g even at −20°C with no deposition of lithium dendrites. A full-cell fabricated with the glass anode and LiMn2O4 cathode showed a good life cycle performance at 60°C along with no degradation in its life cycle performance. The tin-phosphate glass is a promising candidate as a new anode material that realizes LiBs with a high energy density that can be used over a wide temperature range.

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All-solid-state batteries using Li2S–P2S5 solid electrolyte and LiFePO4 glass ceramic electrode particles were constructed. The batteries were charged and discharged with reversible capacity of 110 mA h g−1. Amorphous oxide surface layer formed on LiFePO4 glass ceramic particles improved interfacial properties between LiFePO4 electrode and Li2S–P2S5 solid electrolytes.

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