Anisotropic alignments of hierarchical Li2SiO3/TiO2@nano-C anode//LiMnPO4@nano-C cathode architectures for full-cell lithium-ion battery  

作　　者：Hesham Khalifa Sherif A.El-Safty Abdullah Reda Mohamed A.Shenashen Alaa I.Eid 

机构地区：[1]Research Center for Functional Materials,National Institute for Materials Science,Tsukuba 305-0047,Japan [2]Department of Petrochemical,Egyptian Petroleum Research Institute,Cairo 11727,Egypt [3]Composite Lab,Advanced Materials Division,Central Metallurgical R&D Institute,Helwan 11421,Egypt

出　　处：《National Science Review》2020年第5期863-880,共18页国家科学评论（英文版）

摘　　要：We report on low-cost fabrication and high-energy density of full-cell lithium-ion battery(LIB)models.Super-hierarchical electrode architectures of Li2SiO3/TiO2@nano-carbon anode(LSO.TO@nano-C)and high-voltage olivine LiMnPO4@nano-carbon cathode(LMPO@nano-C)are designed for half-and full-system LIB-CR2032 coin cell models.On the basis of primary architecture-power-driven LIB geometrics,the structure keys including three-dimensional(3D)modeling superhierarchy,multiscale micro/nano architectures and anisotropic surface heterogeneity affect the buildup design of anode/cathode LIB electrodes.Such hierarchical electrode surface topologies enable continuous in-/out-flow rates and fast transport pathways of Li+-ions during charge/discharge cycles.The stacked layer configurations of pouch LIB-types lead to excellent charge/discharge rate,and energy density of 237.6 Wh kg−1.As the most promising LIB-configurations,the high specific energy density of hierarchical pouch battery systems may improve energy storage for long-driving range of electric vehicles.Indeed,the anisotropic alignments of hierarchical electrode architectures in the large-scale LIBs provide proof of excellent capacity storage and outstanding durability and cyclability.The full-system LIB-CR2032 coin cell models maintain high specific capacity of∼89.8%within a long-term life period of 2000 cycles,and average Coulombic efficiency of 99.8%at 1C rate for future configuration of LIB manufacturing and commercialization challenges.

关 键 词：lithium-ion batteries micro/nano architectures LiMnPO4@nano-carbon cathode Li2SiO3/TiO2@nano-carbon anode LIB-CR2032 coin cell models 

分 类 号：TB33[一般工业技术—材料科学与工程] TM912[电气工程—电力电子与电力传动]