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成果報告書詳細
管理番号20190000000564
タイトル*2018年度中間年報 先進・革新蓄電池材料評価技術開発(第2期)(学校法人甲南学園 甲南大学)
公開日2019/6/11
報告書年度2018 - 2018
委託先名学校法人甲南学園 甲南大学
プロジェクト番号P18003
部署名次世代電池・水素部
和文要約
英文要約Title: Development of Fundamental technologies for All Solid State Battery applied to Electric Vehicles (FY2018 - FY2020) FY2018 Annual Report

Silicon films were prepared on copper and nickel foils by use of two different methods; one was a plasma spraying method and the other one was a paint-on method with doctor blade. The electrochemical properties of the Si films as an anode for all-solid-state lithium-ion batteries were investigated at room temperature. The all-solid-sate test cell was constructed form three layers: one was the anode layer that was composed of the Si film, another part was the sulfide-base lithium ion conducting solid electrolyte, and the other part was the cathode part that composed of Li-In alloy. The all-solid-state test cell was cycled in the voltage range of -0.6 to 1.0 V at a constant current density of 0.1 mA/cm2 by use of a battery tester.
The thickness of the plasma sprayed Si films was about 10μm and the Si weight per unit area was about 1 to 2 mg/cm2. The plasma sprayed films showed the relatively large electrochemical capacities of 1500 to 1800 mAh/g. On the other hand, the thickness of the painted-on Si film was about 20μm and the Si weight per unit area was about 1.5mg/cm2. The electrochemical capacity of the painted-on Si film was about 1300 mAh/g as an anode of all-solid-state lithium cells.
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