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Advanced Energy‐Storage Architectures Composed of Spinel Lithium Metal Oxide Nanocrystal on Carbon Textiles
Author(s) -
Shen Laifa,
Ding Bing,
Nie Ping,
Cao Guozhong,
Zhang Xiaogang
Publication year - 2013
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201300456
Subject(s) - materials science , spinel , nanocrystal , lithium (medication) , battery (electricity) , nanotechnology , carbon fibers , electrolyte , electrode , cathode , intercalation (chemistry) , chemical engineering , energy storage , composite number , inorganic chemistry , composite material , metallurgy , medicine , power (physics) , chemistry , physics , quantum mechanics , endocrinology , engineering
Current battery technologies are known to suffer from kinetic problems associated with the solid‐state diffusion of Li + in intercalation electrodes materials. Not only the use of nanostructure materials but also the design of electrode architectures can lead to more advanced properties. Here, advanced electrode architectures consisting of carbon textiles conformally covered by Li 4 Ti 5 O 12 nanocrystal are rationally designed and synthesized for lithium ion batteries. The efficient two‐step synthesis involves the growth of ultrathin TiO 2 nanosheets on carbon textiles, and subsequent conversion into spinel Li 4 Ti 5 O 12 through chemical lithiation. Importantly, this novel approach is simple and general, and it is used to successfully produce LiMn 2 O 4 /carbon composites textiles, one of the leading cathode materials for lithium ion batteries. The resulting 3D textile electrode, with various advantages including the direct electronic pathway to current collector, the easy access of electrolyte ions, the reduced Li + /e − diffusion length, delivers excellent rate capability and good cyclic stability over the Li‐ion batteries of conventional configurations.