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Scalable Dry Production Process of a Superior 3D Net‐Like Carbon‐Based Iron Oxide Anode Material for Lithium‐Ion Batteries
Author(s) -
Li Min,
Du Haoran,
Kuai Long,
Huang Kuangfu,
Xia Yuanyuan,
Geng Baoyou
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201707647
Subject(s) - anode , materials science , carbon fibers , chemical engineering , pyrolysis , carbothermic reaction , lithium (medication) , oxide , iron oxide , composite number , composite material , chemistry , electrode , carbide , metallurgy , medicine , engineering , endocrinology
Carbon‐based transition‐metal oxides are considered as an appropriate anode material candidate for lithium‐ion batteries. Herein, a simple and scalable dry production process is developed to produce carbon‐encapsulated 3D net‐like FeO x /C materials. The process is simply associated with the pyrolysis of a solid carbon source, such as filter paper, adsorbed with ferrite nitrate. The carbon derived from filter paper induces a carbothermal reduction to form metallic Fe, the addition of carbon and iron increase the conductivity of this material. As expected, this 3D net‐like FeO x /C composite delivers an excellent charge capacity of 851.3 mAh g −1 after 50 cycles at 0.2 A g −1 as well as high stability and rate performance of 714.7 mAh g −1 after 300 cycles at 1 A g −1 . Superior performance, harmlessness, low costs, and high yield may greatly stimulate the practical application of the products as anode materials in lithium‐ion batteries.