In this study,TiNCl was designed and applied in high-rate lithium-ion batteries(LIBs),and the mechanism of the energy storage in TiNCl was uncovered.The Ti-N layer serves as the electronic conductive unit for its high...In this study,TiNCl was designed and applied in high-rate lithium-ion batteries(LIBs),and the mechanism of the energy storage in TiNCl was uncovered.The Ti-N layer serves as the electronic conductive unit for its high conductivity,while the polyhedral channels constructed with Cl facilitate the transmission of Li ions serving as the ionic conductive units.In addition,due to the negatively charged nature of Cl,the TiNCl anode has a capacitive contribution up to 99.5%at 1 mV s.Even at a high rate of 50 C,it still retains a remarkable reversible capacity of 202 mA h gafter 1000 cycles.The concept based on the structure design develops new electrode materials with desired properties.展开更多
基金supported by the National Natural Science Foundation of China(21871008 and 51972326)the Key Research Program of Chinese Academy of Sciences(QYZDJ-SSW-JSC013)+1 种基金the Science and Technology Commission of Shanghai Municipality(22ZR1471300)the Youth Innovation Promotion Association CAS。
文摘In this study,TiNCl was designed and applied in high-rate lithium-ion batteries(LIBs),and the mechanism of the energy storage in TiNCl was uncovered.The Ti-N layer serves as the electronic conductive unit for its high conductivity,while the polyhedral channels constructed with Cl facilitate the transmission of Li ions serving as the ionic conductive units.In addition,due to the negatively charged nature of Cl,the TiNCl anode has a capacitive contribution up to 99.5%at 1 mV s.Even at a high rate of 50 C,it still retains a remarkable reversible capacity of 202 mA h gafter 1000 cycles.The concept based on the structure design develops new electrode materials with desired properties.
基金National Key Research and Development Program of China(2016YFB0901600)National Natural Science Foundation of China(21872166)+1 种基金Science&Technology Commission of Shanghai(16ZR1440400,16JC1401700)The Key Research Program of Chinese Academy of Sciences(QYZDJ-SSW-JSC013 and KGZD-EW-T06)。
