Li-air batteries have received much attention in the past several years because of their large theoretical specific energy density, stable output voltage, cost-effective, energy-efficient and pollution free, and have ...Li-air batteries have received much attention in the past several years because of their large theoretical specific energy density, stable output voltage, cost-effective, energy-efficient and pollution free, and have broad application prospects. If it is successfully developed, the battery could be an excellent energy storage device for renewable energy sources such as wind, solar, and tidal energy, which brings a prospect for human to solve the problem of environment pollution and energy crisis. But the electrolyte is a crucial component of Li-air battery and the electrochemical performance of the battery is determined by electrolyte to a great extent. Due to the react violently between lithium and water, it is not practical for Li-air battery to use directly an aqueous electrolyte unless the anode can be protected from degradation. In this review, we presented the latest research progress on the non-aqueous electrolyte, i.e. organic electrolyte, ionic liquid and solid electrolyte. We elaborated the influence of solvents, and possible additives, and/or their combination Li-air battery’s performance. Finally, we provided insights into the prospect of non-aqueous electrolyte for Li-air battery.展开更多
Population ageing is the new national condition of China in 21st century.Responding actively to population ageing should be a long-term strategy of the country.This article introduces the process and characteristics o...Population ageing is the new national condition of China in 21st century.Responding actively to population ageing should be a long-term strategy of the country.This article introduces the process and characteristics of population ageing as the new national conditions and major challenges posed by it in the first session;in the second session,the author reviews the history of ageing policy system development since the founding of P.R.C.and presents the blueprint of a top-level strategy to respond actively to population ageing in the new era;session three of the article describes the major achievements of undertakings on ageing after 18th CPC national congress.展开更多
文摘Li-air batteries have received much attention in the past several years because of their large theoretical specific energy density, stable output voltage, cost-effective, energy-efficient and pollution free, and have broad application prospects. If it is successfully developed, the battery could be an excellent energy storage device for renewable energy sources such as wind, solar, and tidal energy, which brings a prospect for human to solve the problem of environment pollution and energy crisis. But the electrolyte is a crucial component of Li-air battery and the electrochemical performance of the battery is determined by electrolyte to a great extent. Due to the react violently between lithium and water, it is not practical for Li-air battery to use directly an aqueous electrolyte unless the anode can be protected from degradation. In this review, we presented the latest research progress on the non-aqueous electrolyte, i.e. organic electrolyte, ionic liquid and solid electrolyte. We elaborated the influence of solvents, and possible additives, and/or their combination Li-air battery’s performance. Finally, we provided insights into the prospect of non-aqueous electrolyte for Li-air battery.
基金Major projects of Humanities and Social Sciences Key Base of Ministry of Education(16JDD840004)National Social Science Fund of China Grants(14CRK010)National Natural Science Foundations of China Grants(71490732).
文摘Population ageing is the new national condition of China in 21st century.Responding actively to population ageing should be a long-term strategy of the country.This article introduces the process and characteristics of population ageing as the new national conditions and major challenges posed by it in the first session;in the second session,the author reviews the history of ageing policy system development since the founding of P.R.C.and presents the blueprint of a top-level strategy to respond actively to population ageing in the new era;session three of the article describes the major achievements of undertakings on ageing after 18th CPC national congress.
