C
Christopher S. Johnson
Researcher at Argonne National Laboratory
Publications - 167
Citations - 20701
Christopher S. Johnson is an academic researcher from Argonne National Laboratory. The author has contributed to research in topics: Lithium & Cathode. The author has an hindex of 55, co-authored 156 publications receiving 18557 citations. Previous affiliations of Christopher S. Johnson include Apple Inc. & University of Chicago.
Papers
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Journal ArticleDOI
Sodium‐Ion Batteries
TL;DR: In this paper, the status of ambient temperature sodium ion batteries is reviewed in light of recent developments in anode, electrolyte and cathode materials, including high performance layered transition metal oxides and polyanionic compounds.
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Li2MnO3-stabilized LiMO2 (M = Mn, Ni, Co) electrodes for lithium-ion batteries
Michael M. Thackeray,Sun-Ho Kang,Christopher S. Johnson,John T. Vaughey,Roy Benedek,Stephen A. Hackney +5 more
TL;DR: In this paper, a strategy used to design high capacity (>200 mAh g−1), Li2MnO3-stabilized LiMO2 (M = Mn, Ni, Co) electrodes for lithium-ion batteries is discussed.
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Demonstrating Oxygen Loss and Associated Structural Reorganization in the Lithium Battery Cathode Li[Ni0.2Li0.2Mn0.6]O2
A. Robert Armstrong,Michael Holzapfel,Petr Novák,Christopher S. Johnson,Sun-Ho Kang,and Michael M. Thackeray,Peter G. Bruce +6 more
TL;DR: It is demonstrated directly, by in situ differential electrochemical mass spectrometry (DEMS), that O2 is evolved from such Mn4+ -containing compounds, Li-Mn-Ni-O compounds, which can, after O loss, store 200 mAhg(-1) of charge compared with 140mAhg (-1) for LiCoO(2).
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Advances in manganese-oxide ‘composite’ electrodes for lithium-ion batteries
TL;DR: In this paper, a two-component notation is used to represent the Li2MnO3, LiMO2 and LiM2O4 components, which provide an initial capacity >250 mAh g−1 when discharged between 5 and 2.0 V vs. Li0 and a rechargeable capacity up to 250 mAhg−1 over the same potential window.
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The significance of the Li2MnO3 component in ‘composite’ xLi2MnO3 · (1 − x)LiMn0.5Ni0.5O2 electrodes
Christopher S. Johnson,J.-S. Kim,Christina Lefief,Naichao Li,John T. Vaughey,Michael M. Thackeray +5 more
TL;DR: In this paper, the performance of 0.3Li 2 MnO 3, 0.7LiMn 0.5 Ni 0.35 O 2 composite electrodes was compared with the behavior of electrodes that were preconditioned by acid treatment, showing that acid treatment significantly reduces the coulombic inefficiency of the initial charge/discharge cycle of the cells.