All-solid-state lithium battery(ASLB)based on sulfide-based electrolyte is considered to be a candidate for the next-generation high-energy storage system.Despite the high ionic conductivity of sulfide solid electroly...All-solid-state lithium battery(ASLB)based on sulfide-based electrolyte is considered to be a candidate for the next-generation high-energy storage system.Despite the high ionic conductivity of sulfide solid electrolyte,the poor interfacial stability(mechanically and chemically)between active materials and sulfide solid electrolytes in composite cathodes leads to inferior electrochemical performances,which impedes the practical application of sulfide electrolytes.In the past years,various of strategies have been carried out to achieve an interface with low impedance in the composite cathodes.Herein,a review of recent progress of composite cathodes for all-solid-state sulfide-based lithium batteries is summarized,including the interfacial issues,design strategies,fabrication methods,and characterization techniques.Finally,the main challenges and perspectives of composite cathodes for high-performance all-solidstate batteries are highlighted for future development.展开更多
With the emergence and development of wearable devices,the novel ene rgy storage systems with flexible feature and high energy density are urgently needed.As we all know,for next generation high energystorage systems,...With the emergence and development of wearable devices,the novel ene rgy storage systems with flexible feature and high energy density are urgently needed.As we all know,for next generation high energystorage systems,lithium-sulfur(Li-S) batteries with a high theoretical capacity are regarded as one of the most promising candidates.In addition,the flexible Li-S batteries have received more and more attention.The determined factor in the flexible Li-S batteries is how to design the foldable electrodes including both anode and cathode.As for the flexible sulfur cathode,it could be obtained by integrating the electroactive sulfur with a flexible substrate,generally.In recent years,the flexible cathode of Li-S batteries have made considerable progress,however there are also many huge challenges needing to overcome,such as low content of sulfur,fast decrease of capacity and short cycle life.In this paper,the current develop status of flexible cathodes of Li-S batteries have been summarized,and the future trend also be pointed out.展开更多
Recently,exploring appropriate anode materials for current commercial lithium-ion batteries(LIBs) with suitable operating potential and long cycle life has attracted extensive attention.Herein,a novel anode of Bi nano...Recently,exploring appropriate anode materials for current commercial lithium-ion batteries(LIBs) with suitable operating potential and long cycle life has attracted extensive attention.Herein,a novel anode of Bi nanoparticles fully encapsulated in carbon nanosphere framework with uniform yolk-shell nanostructure was prepared via a facile hydrothermal method.Due to the special structure design,this anode of yolk-shell Bi@C can effectively moderate the volume exchange,avoid the aggregation of active Bi nanoparticle and provide superior kinetic during discharge/charge process.Cycling in the voltage of 0.01-2.0 V,yolk-shell Bi@C anode exhibits outstanding Li+storage performance(a reversible capacity over 200 mAh g-1after 400 cycles at 1.25 A g-1) and excellent rate capability(a capacity of 404,347,304,275,240,199 and 163 mAh g-1 at0.05,0.1,0.25,0.5,1.0,1.8 and 3.2 A g-1,respectively).This work indicates that rational design of nanostructured anode materials is highly applicable for the next-generation LIBs.展开更多
基金supported by the National Natural Science Foundation of China of China(No.51771076)Innovative Research Groups of the National Natural Science Foundation of China(No.NSFC51621001)+2 种基金the‘‘1000 plan”from Chinese Government,the Guangdong‘‘Pearl River Talents Plan”(No.2017GC010218)the Guangzhou Science and Technology Plan Projects(No.201804010104)the R&D Program in Key Areas of Guangdong Province(No.2020B0101030005)。
文摘All-solid-state lithium battery(ASLB)based on sulfide-based electrolyte is considered to be a candidate for the next-generation high-energy storage system.Despite the high ionic conductivity of sulfide solid electrolyte,the poor interfacial stability(mechanically and chemically)between active materials and sulfide solid electrolytes in composite cathodes leads to inferior electrochemical performances,which impedes the practical application of sulfide electrolytes.In the past years,various of strategies have been carried out to achieve an interface with low impedance in the composite cathodes.Herein,a review of recent progress of composite cathodes for all-solid-state sulfide-based lithium batteries is summarized,including the interfacial issues,design strategies,fabrication methods,and characterization techniques.Finally,the main challenges and perspectives of composite cathodes for high-performance all-solidstate batteries are highlighted for future development.
基金This work was financially supported by the National Natural Science Foundation of China(No.51771076)the Innovative Research Groups of the National Natural Science Foundation of China(No.NSFC51621001)+2 种基金the“1000 plan”from Chinese Governmentthe Guangdong“Pearl River Talents Plan”(No.2017GC010218)the Guangzhou Science and Technology Plan Projects(No.201804010104)。
文摘With the emergence and development of wearable devices,the novel ene rgy storage systems with flexible feature and high energy density are urgently needed.As we all know,for next generation high energystorage systems,lithium-sulfur(Li-S) batteries with a high theoretical capacity are regarded as one of the most promising candidates.In addition,the flexible Li-S batteries have received more and more attention.The determined factor in the flexible Li-S batteries is how to design the foldable electrodes including both anode and cathode.As for the flexible sulfur cathode,it could be obtained by integrating the electroactive sulfur with a flexible substrate,generally.In recent years,the flexible cathode of Li-S batteries have made considerable progress,however there are also many huge challenges needing to overcome,such as low content of sulfur,fast decrease of capacity and short cycle life.In this paper,the current develop status of flexible cathodes of Li-S batteries have been summarized,and the future trend also be pointed out.
基金financially supported by the National Natural Science Foundation of China(No.51771076)the Innovative Research Groups of the National Natural Science Foundation of China(No.NSFC51621001)the Guangdong“Pearl River Talents Plan”(No.2017GC010218)。
文摘Recently,exploring appropriate anode materials for current commercial lithium-ion batteries(LIBs) with suitable operating potential and long cycle life has attracted extensive attention.Herein,a novel anode of Bi nanoparticles fully encapsulated in carbon nanosphere framework with uniform yolk-shell nanostructure was prepared via a facile hydrothermal method.Due to the special structure design,this anode of yolk-shell Bi@C can effectively moderate the volume exchange,avoid the aggregation of active Bi nanoparticle and provide superior kinetic during discharge/charge process.Cycling in the voltage of 0.01-2.0 V,yolk-shell Bi@C anode exhibits outstanding Li+storage performance(a reversible capacity over 200 mAh g-1after 400 cycles at 1.25 A g-1) and excellent rate capability(a capacity of 404,347,304,275,240,199 and 163 mAh g-1 at0.05,0.1,0.25,0.5,1.0,1.8 and 3.2 A g-1,respectively).This work indicates that rational design of nanostructured anode materials is highly applicable for the next-generation LIBs.
