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A Novel High‐Capacity Anode Material Derived from Aromatic Imides for Lithium‐Ion Batteries
Author(s) -
Wang Yaru,
Liu Zhen,
Liu Huijun,
Liu Huan,
Li Bing,
Guan Shiyou
Publication year - 2018
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201704094
Subject(s) - anode , lithium (medication) , materials science , intercalation (chemistry) , ion , conjugated system , chemical engineering , imide , aromaticity , oligomer , inorganic chemistry , organic chemistry , chemistry , polymer chemistry , electrode , molecule , composite material , polymer , medicine , engineering , endocrinology
A novel anode material for lithium‐ion batteries derived from aromatic imides with multicarbonyl group conjugated with aromatic core structure is reported, benzophenolne‐3,3′,4,4′‐tetracarboxylimide oligomer (BTO). It could deliver a reversible capacity of 829 mA h g −1 at 42 mA g −1 for 50 cycles with a stable discharge plateaus ranging from 0.05–0.19 V versus Li + /Li. At higher rates of 420 and 840 mA g −1 , it can still exhibit excellent cycling stability with a capacity retention of 88% and 72% after 1000 cycles, delivering capacity of 559 and 224 mA h g −1 . In addition, a rational prediction of the maximum amount of lithium intercalation is proposed and explored its possible lithium storage mechanism.