Open AccessActivated carbon derived from coconut shell chars for use as a cathode material in aluminium-ion batteries
Author(s) -
Panya Thanwisai,
Pornjira Phuenhinlad,
Nattha Chaiyapo,
Yutthanakon Kanaphan,
Jeffrey Nash,
Chuleekorn Chotsuwan,
T. Rattana-amron,
Annop Klamchuen,
glak Meethong
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1719/1/012059
Subject(s) - cathode , carbonization , materials science , anode , activated carbon , chemical engineering , carbon fibers , electrochemistry , nanotechnology , composite material , chemistry , organic chemistry , adsorption , electrode , scanning electron microscope , composite number , engineering
Aluminium-ion batteries (AIBs) are a promising energy storage system due to their significant advantages of low cost, high anode capacity and safety. Nevertheless, the critical challenge limiting AIB performance is an inadequate cathode capacity that diminishes their cell energy density. To overcome this limitation, it is important to develop novel cathode materials with high cathode capacity for AIBs. Herein, we report an activated carbon derived from coconut shell chars for use as a cathode material in AIBs. The activated carbon was synthesized via KOH activation and carbonization. The prepared cathode material exhibits a high specific capacity of 38 mAh g −1 at a high current density of 1 A g −1 due to its high specific surface area of 2686 m 2 g −1 , which is beneficial for chloroaluminate-ion accommodation. This result indicates that the activated carbon derived from coconut shell chars with its high surface area is electrochemically active and is likely to be a promising cathode material for AIBs.