Issue 20, 2016

Materials chemistry toward electrochemical energy storage

Abstract

Materials chemistry focuses on all aspects of the production of electrode materials or the properties or applications of materials related to energy storage, which thus plays an important role in the field of energy storage. Electrochemical energy storage includes the conversion reaction between chemical energy and electric energy, with the electric energy being stored in chemical bonds of electrode materials of both battery and pseudocapacitor types. Energy density, power density and safety of these devices, i.e. lithium ion batteries and supercapacitors, are mostly dependent on the electrode materials with high electroactivity, high electron/ion conductivity, and high structural/electrochemical stability. Following the function-directed materials design rule, we can select appropriate elements, chemical bonds, crystal structures, and morphologies of those materials toward high electrochemical performances. In this review, we summarize, from both theoretical and experimental viewpoints of materials chemistry, recent advances in designing electrode materials from element and structure selections to final morphology selection. Electronegativity, atom radius, chemical bonding behavior, and oxidation state have been identified as controllable materials properties to synthesize high-performance electrode materials. This review provides general materials chemistry rules to rationally design electrode materials with improved electrochemical performance.

Graphical abstract: Materials chemistry toward electrochemical energy storage

Article information

Article type
Review Article
Submitted
20 फरवरी 2016
Accepted
11 अप्रैल 2016
First published
11 अप्रैल 2016

J. Mater. Chem. A, 2016,4, 7522-7537

Materials chemistry toward electrochemical energy storage

K. Chen and D. Xue, J. Mater. Chem. A, 2016, 4, 7522 DOI: 10.1039/C6TA01527A

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