A Dual-Ion Battery Constructed with Aluminum Foil Anode and Mesocarbon Microbead Cathode via an Alloying/Intercalation Process in an Ionic Liquid Electrolyte
A novel dual‐ion battery constructed with aluminum foil anode and mesocarbon microbead (MCMB) cathode based on a lithium‐salt containing ionic liquid electrolyte is prepared. The working mechanism of this Al‐MCMB dual‐ion battery is demonstrated to be intercalation/deintercalation of anions into/fro...
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Published in | Advanced materials interfaces Vol. 3; no. 23; pp. np - n/a |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
Blackwell Publishing Ltd
01.12.2016
John Wiley & Sons, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | A novel dual‐ion battery constructed with aluminum foil anode and mesocarbon microbead (MCMB) cathode based on a lithium‐salt containing ionic liquid electrolyte is prepared. The working mechanism of this Al‐MCMB dual‐ion battery is demonstrated to be intercalation/deintercalation of anions into/from the MCMB cathode and AlLi alloying/dealloying at the Al anode. Owing to the good stability of ionic liquid at high working voltage and the protection of fluoroethylene carbonate additive in the electrolyte by forming stable solid electrolyte interphase film on the Al foil, the battery presents superior cycling stability at high cut‐off voltage of 4.8 V with a reversible capacity of 98 mAh g−1 after 300 cycles at 0.5 C with negligible decay. Moreover, as the Al foil is directly utilized as both anode material and current collector, the energy density of the packaged Al‐MCMB cell can be further increased, which is estimated to be 221 W h kg−1 at the power density of 109 W kg−1 and remains 185 W h kg−1 at 1141 W kg−1, much better than most commercial lithium‐ion batteries.
A novel dual‐ion battery constructed with aluminum foil anode and mesocarbon microbead cathode is designed in this work based on an ionic liquid electrolyte. The battery shows only 2% decrease after 300 cycles. Moreover, the energy density of the packaged battery can be estimated to be 221 W h kg−1 at the power density of 109 W kg−1, much higher than most commercial lithium‐ion batteries. |
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Bibliography: | Science and Technology Planning Project of Guangdong Province - No. 2014A010105032; No. 2015A010106008 Scientific Equipment Project of Chinese Academy of Sciences - No. yz201440 ArticleID:ADMI201600605 istex:A5967F35B94735B653AFA7ED1164E3C5F2DBAFA6 Shenzhen Science and Technology Planning Project - No. JSGG20150602143328010; No. JCYJ20150401145529042 Guangdong Innovative and Entrepreneurial Research Team Program - No. 2013C090 Hong Kong Scholars Program - No. XJ2015048 China Postdoctoral Science Foundation - No. 2015M570737 ark:/67375/WNG-FLXM61F9-N National Natural Science Foundation of China - No. 51302238 Natural Science Foundation of Guangdong Province - No. 2014A030310226 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2196-7350 2196-7350 |
DOI: | 10.1002/admi.201600605 |