| 1 | Review—Lithium Carbon Composite Material for Practical Lithium Metal Batteries显示文摘Comprehensive Summary Lithium(Li)metal is considered ideal for high-energy-density batteries due to its extremely high specific capacity and low electrochemical potential.However,uncontrolled Li dendrite growth and interfacial instability during repeated Li plating/stripping have limited the practical applicability of Li metal batteries(LMBs).Over the past decades,substantial efforts have been devoted to solving the challenges associated with Li metal anodes.Our research team has developed several Li-carbon(Li-C)microsphere composites in recent years to suppress the formation of Li dendrites and achieve a decent cycle life.In this account,we summarize our advances in the design and application of Li-C composites,which include the developments in the structure and chemical composition of high-specific-capacity Li-C composites,strategies for surface passivation of the micro-spherical Li-C composites,and applications of the Li-C composite in next-generation high-energy-density Li-ion,Li-air,and solid-state LMBs.Finally,we discuss future perspectives for developing high-performance Li metal anodes and endeavors to realize the practical applications of LMBs. | Lei Zheng Ruowei Yi Nan Zheng Yanbin Shen Liwei Chen | 2023 | Chinese Journal of Chemistry2023，41，7： | 1 |
| 2 | Trimethoxyboroxine as an electrolyte additive to enhance the 4.5V cycling performance of a Ni-rich layered oxide cathode显示文摘Ni-rich layered oxides are attractive cathode materials for advanced lithium-ion batteries(LIBs)due to their high energy density.However,their large-scale application is seriously hindered by their interfacial instability,especially at a high cut-off potential.Here,we demonstrate that trimethoxyboroxine(TMOBX)is an effective film-forming additive to address the interfacial instability of LiNi0.8Co0.1Mn0.1O_(2)(NCM811)material at a high cut-off voltage of 4.5V.We find that TMOBX decomposes before carbonate solvent and forms a thin cathode electrolyte interphase(CEI)layer on the surface of the NCM811 material.This TMOBX-formed CEI significantly suppresses electrolyte decomposition at a high potential and inhibits the dissolution of transition metals from NCM811 during cycling.In addition,electron-deficient borate compounds coordinate with anions(PF6^(−),F^(-) etc.)and H2O in the battery,further improving the battery's stability.As a result,adding 1.0wt%of TMOBX boosts the capacity retention of a Li||NCM811cell from 68.72%to 86.60%after 200 cycles at 0.5C in the range of 2.8–4.5V. | Wei Gu Guoyong Xue Qingyu Dong Ruowei Yi Yayun Mao Lei Zheng Haikuo Zhang Xiulin Fan Yanbin Shen Liwei Chen | 2022 | eScience2022，2，5： | 1 |
| 3 | Dynamics and controls of ecosystem multiserviceability across the Qingzang Plateau显示文摘Ecosystem multiserviceability(EMS),a comprehensive and significant ecological indicator,reflects the capacity of ecosystems to offer multiple services concurrently.Intensified climate change and human activity are continu-ously altering ecosystem functions,services,and EMSs.However,numerous studies have only focused on one or a few ecosystem services,rarely taking into account spatial-temporal distribution and drivers of EMS on behalf of different agencies.We calculated EMS including pastoralist(PA),environmental protection agency(EPA),bio-diversity conservation agency(BCA),and climate change mitigation agency(CCMA)using grassland production,habitat quality,water conservation,and carbon sequestration.Then,the effects of geographical features,climate factors,and human activities on spatial-temporal patterns of EMS were explored.The result indicated that EMS showed a decreasing tendency from the southeast to northwest on the Qingzang Plateau(QZP).Meanwhile,there were no obvious fluctuations in four simulated scenarios(PA,EPA,BCA and CCMA)among different vegetation types during 2000 to 2015.Notably,EMS of all simulated scenarios decreased in the alpine steppe ecosystem,but negligible changes were found in other ecosystems from 2015 to 2020.Moreover,the relative importance of precipitation in annual mean value(from 2000 to 2020)of PA,EPA,BCA and CCMA were 0.13,0.11,0.30 and 0.19,respectively.Overall,precipitation played the dominant role on the dynamics of EMS,followed by elevation and human footprint.Our findings highlighted that understanding the patterns and drivers of EMS could provide a reference for the regional management and maintenance of ecosystem stability on QZP. | Ruowei Li Guodong Han Jian Sun Tiancai Zhou Junhe Chen Wen He Yi Wang | 2023 | Geography and Sustainability2023，4，4： | 0 |
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