AI Article Synopsis
- A novel anode material for lithium-ion batteries, called benzophenolne-3,3',4,4'-tetracarboxylimide oligomer (BTO), is derived from aromatic imides with multi-carbonyl groups.
- It demonstrates a high reversible capacity of 829 mA h g at a low rate of 42 mA g over 50 cycles, maintaining stable discharge voltages between 0.05-0.19 V.
- Even at higher rates like 420 and 840 mA g, BTO shows impressive cycling stability with capacity retention of 88% and 72% after 1000 cycles, while also investigating its lithium storage mechanism.
Article Abstract
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 at 42 mA g 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 , 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 . In addition, a rational prediction of the maximum amount of lithium intercalation is proposed and explored its possible lithium storage mechanism.
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| http://dx.doi.org/10.1002/smll.201704094 | DOI Listing |
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