Improvements to the Overpotential of All-Solid-State Lithium-Ion Batteries during the Past Ten Years
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- Improvements to the Overpotential of All-Solid-State Lithium-Ion Batteries during the Past Ten Years
- Oh, Pilgun; Lee, Hyomyung; Park, Seohyeon; Cha, Hyungyeon; Kim, Junhyeok; Cho, Jaephil
- Issue Date
- WILEY-V C H VERLAG GMBH
- ADVANCED ENERGY MATERIALS, pp.2000904
- After the research that shows that Li10GeP2S12 (LGPS)-type sulfide solid electrolytes can reach the high ionic conductivity at the room temperature, sulfide solid electrolytes have been intensively developed with regard to ionic conductivity and mechanical properties. As a result, an increasing volume of research has been conducted to employ all-solid-state lithium batteries in electric automobiles within the next five years. To achieve this goal, it is important to review the research over the past decade, and understand the requirements for future research necessary to realize the practical applications of all-solid-state lithium batteries. To date, research on all-solid-state lithium batteries has focused on achieving overpotential properties similar to those of conventional liquid-lithium-ion batteries by increasing the ionic conductivity of the solid electrolytes. However, the increase in the ionic conductivity should be accompanied by improvements of the electronic conductivity within the electrode to enable practical applications. This essay provides a critical overview of the recent progress and future research directions of the all-solid-state lithium batteries for practical applications.
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