z-logo
Premium
A High‐Capacity Tellurium@Carbon Anode Material for Lithium‐Ion Batteries
Author(s) -
Zhang Juan,
Yin YaXia,
You Ya,
Yan Yang,
Guo YuGuo
Publication year - 2014
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201402069
Subject(s) - anode , electrochemistry , lithium (medication) , tellurium , microporous material , materials science , cathode , carbon fibers , chemical engineering , ion , molecule , nanotechnology , chemistry , electrode , composite material , organic chemistry , metallurgy , medicine , composite number , engineering , endocrinology
The electrochemical properties of helical‐chain Te n molecules confined in a microporous carbon host (MPC) are reported here, showing potential as an attractive anode for Lithium‐ion batteries. These confined Te n molecules provide a high reversible volumetric capacity of 2558 mAh cm −3 , with a redox potential of 1.5 V (vs. Li + /Li) (≈4.2 times higher than that of a Li 4 Ti 5 O 12 anode, 613 mAh cm −3 , 1.55 V vs. Li + /Li). The anode also exhibits an excellent high‐rate capability (998 mAh cm −3 at 10  C ) and admirable long‐term cyclic stability (capacity retention of 85 % over 1000 cycles), benefiting from the good confinement of the MPC host and intrinsically superior conductivity of Te n chains inside it. Furthermore, a new type of Li‐ion full cell is successfully constructed with this tellurium@carbon anode and a traditional LiMn 0.33 Ni 0.33 Co 0.33 O 2 cathode, which shows outstanding performance. All these unique merits show promise for the tellurium‐molecule‐based material as an attractive anode for building next‐generation Li‐ion batteries with high energy density and safe operation.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here