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Multiscale Understanding and Architecture Design of High Energy/Power Lithium‐Ion Battery Electrodes
Author(s) -
Zhang Xiao,
Ju Zhengyu,
Zhu Yue,
Takeuchi Kenneth J.,
Takeuchi Esther S.,
Marschilok Amy C.,
Yu Guihua
Publication year - 2021
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.202000808
Subject(s) - materials science , exploit , energy storage , nanotechnology , battery (electricity) , multiphysics , context (archaeology) , lithium ion battery , computer science , electricity , systems engineering , engineering physics , power (physics) , electrical engineering , engineering , finite element method , paleontology , physics , computer security , structural engineering , quantum mechanics , biology
Among various commercially available energy storage devices, lithium‐ion batteries (LIBs) stand out as the most compact and rapidly growing technology. This multicomponent system operates on coupled dynamics to reversibly store and release electricity. With the hierarchical electrode architectures inside LIBs, versatile functionality can be realized by design, while considerable difficulties remain to be solved to fully exploit the capability of each constituent. With the rapid electrification of the transportation sector and an urgent need to overhaul electric grids in the context of renewable energy penetration, demands for concomitant high energy and high power batteries are continuously increasing. Although building an ideal battery requires effort from multiple scientific and engineering aspects, it is imperative to gain insight into multiscale transport behaviors arising in both spatial and temporal dimensions, and enable their harmonic integration inside the whole battery system. In this progress report, recent research efforts on characterizing and understanding transport kinetics in LIBs are reviewed covering a broad range of electrode materials and length scales. To demonstrate the crucial role of such information in revolutionary electrode design, examples of innovative high energy/power electrodes are provided with their unique hierarchical porous architectures highlighted. To conclude, perspectives on further approaches toward advanced thick electrode designs with fast kinetics and tailored properties are discussed.