Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 8, Issue 26, Pages 16932-16938Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b04277
Keywords
organic electrode; ladder-like oligomer; rechargeable battery; lithium ion; anode; high performance; long cycling
Funding
- MOE [RG133/14, RG 13/15, ARC 2/13]
- CREATE program (Nanomaterials for Energy and Water Management) from NRF, Singapore
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, China [sklssm2015027]
- Singapore MOE [RG 2/13, RG 113/15]
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Herein we report the development of nanostructured poly(1,4-dihydro-11H-pyrazino[2',3':3,4]cyclopenta[1,2-b]quinoxalin-11-one) (PPCQ), a novel conjugated ladderlike oligomer with the presence of a rich amount of heteroatoms, as the anode material. Beyond its remarkable lithium storage of 972 mAh g(-1) after 120 cycles, the superior cycle life and stable capacity performance of 489 mAh g(-1) revealed by ultralong testing of 1000 cycles (with an average Coulombic efficiency 99.8%) at a high current density of 2.5 A g(-1) indicate its excellent electrochemical stability to be promisingly applied for high-performance lithium-ion batteries (LIBs).
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