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| 1 | High-Voltage Layered Ternary Oxide Cathode Materials:Failure Mechanisms and Modification Methods显示文摘Due to the large reversible capacity,high operating voltage and low cost,layered ternaryoxide cathode materials LiNixCoyAl-x-yO2(NCA)and LiNixCoyMn1-x-yO2(NCM)are considered asthe most potential candidate materials for lithium-ion batteries(LIBs)used in(hybrid)electricvehicles(EVs).However,next-generation long-range EVs require a high specific capacity(around 203 mAh·g^-1at 3.7V)at the cathode active material level,which is not provided withcurrent commercially layered ternary oxide cathodes.Increasing the operating voltage is aneffective method to improve the specific capacity of the cathode and the energy density of the battery,but the high operating voltage also causes a lot of problems,such as cation mix-ing and phase transformation,electrolyte decomposition,transition metal dissolution andmicrocracks.So far,researchers have carried out a lot of works to solve these issues.Surfacecoating,element doping and the design of electrolytes have been proved to be effective solu-tions.In this review,the failure mechanisms and modification methods of high-voltage lay-ered ternary oxide cathode materials are summarized,which could provide valuable infor-mation to the research of high-voltage layered ternary oxide cathode materials in basic sci-ence and industrial production. | Xiaodan Wang Ying Bai Xinran Wang Chuan Wu | 2020 | Chinese Journal of Chemistry2020，38，12： | 5 |
| 2 | Li_(4)Ti_(5)O_(12)spinel anode:Fundamentals and advances in rechargeable batteries显示文摘The Li_(4)Ti_(5)O_(12)(LTO)spinel material,ranking at the second large market share after graphite,is a promising anode material for lithium-ion batteries due to its good cycle stability,rate capability,and safety with both conventional and low-temperature electrolytes.However,several critical challenges,such as the low capacity and gassing issue,hindered the wide applications of LTO anode.Recent progress indicated that the LTO performances are possible to be further improved by novel strategies,such as heterogeneous phase control,surface engineering,or overlithiation.To rethink and develop advanced LTO anodes,this review intensively associates the performances and modification strategies with the electronics/crystal structures.From a thermodynamic/kinetic point of view,we summarized the data obtained from recently developed characterization techniques,and the results of electrochemical performances and fundamental structures of LTO to potentially address several key challenges and issues toward advanced LTO anodes.As a result,light is shed on the future research direction of the LTO anodes. | Hao Zhang Yang Yang Hong Xu Li Wang Xia Lu Xiangming He | 2022 | InfoMat2022，4，4： | 2 |
| 3 | Nonsolvent-induced phase separation-derived TiO_(2) nanotube arrays/porous Ti electrode as high-energy-density anode for lithium-ion batteries显示文摘TiO_(2) nanotube arrays,growing on three-dimensional(3 D)porous Ti membrane,were synthesized using a facile nonsolvent-induced phase separation and anodization process.The length of those three-dimensional nanotube arrays could be tuned by prolonging the anodizing time.When the anodizing time is 8 h,the three-dimensional TiO_(2) nanotube arrays/porous Ti electrode exhibits well cycling stability and ultra-high specific capacity,which is used in lithium-ion batteries,attributed to the high utilization rate of the substrate and the high growth intensity of the active materials.Three-dimensional TiO_(2) nano tube arrays/porous Ti electrode,at 100μA·cm^(-2) with 8 h anodizing time,shows a typical discharge plateau at 1.78 V and exhibits the specific capacity with 2126.7μAh·cm^(-2),The novel nanotube arrays@3 D porous architecture effectively shortens the electron/ion transmission path,which could pave way for optimizing the design of highperformance anode materials for next-generation energy storage system. | Zhi-Jia Zhang Jun Zhao Zhi-Jun Qiao Jia-Min Wang Shi-Hao Sun Wen-Xing Fu Xi-Yuan Zhang Zhen-Yang Yu Yu-Hai Dou Jian-Li Kang Ding Yuan Yue-Zhan Feng Jian-Min Ma | 2021 | Rare Metals2021，40，2： | 1 |
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