TY - JOUR
T1 - High cycle stability of Zn anodes boosted by an artificial electronic-ionic mixed conductor coating layer
AU - Fan, Weijia
AU - Sun, Zhenwen
AU - Yuan, Ye
AU - Yuan, Xinhai
AU - You, Chaolin
AU - Huang, Qinghong
AU - Ye, Jilei
AU - Fu, Lijun
AU - Kondratiev, Veniamin
AU - Wu, Yuping
N1 - Publisher Copyright:
© 2022 The Royal Society of Chemistry.
PY - 2022/3/22
Y1 - 2022/3/22
N2 - Aqueous zinc ion batteries (ZIBs) have received widespread attention. Due to serious corrosion of Zn anodes and dendrite growth, further application of ZIBs is hindered. Herein, an artificial mixed electronic-ionic conductive coating layer (Alg-Zn + AB@Zn) consisting of zinc alginate gel (Alg-Zn) and acidified conductive carbon black (AB) is introduced on the surface of Zn. The as-prepared mixed coating not only provides more Zn nucleation sites, but also effectively reduces the nucleation overpotential of Zn. Therefore, the Alg-Zn + AB@Zn symmetrical cell can stably maintain an extremely low voltage hysteresis. Furthermore, Alg-Zn + AB@Zn endows the Zn/AC full cell with excellent cycle stability, especially at high current densities. A capacity retention rate of nearly 100% can be achieved over 10 000 cycles at 10 A g−1, and 16 000 cycles at 20 A g−1, superior to those of the other reported Zn/AC full cells at high current densities, to the best of the authors' knowledge.
AB - Aqueous zinc ion batteries (ZIBs) have received widespread attention. Due to serious corrosion of Zn anodes and dendrite growth, further application of ZIBs is hindered. Herein, an artificial mixed electronic-ionic conductive coating layer (Alg-Zn + AB@Zn) consisting of zinc alginate gel (Alg-Zn) and acidified conductive carbon black (AB) is introduced on the surface of Zn. The as-prepared mixed coating not only provides more Zn nucleation sites, but also effectively reduces the nucleation overpotential of Zn. Therefore, the Alg-Zn + AB@Zn symmetrical cell can stably maintain an extremely low voltage hysteresis. Furthermore, Alg-Zn + AB@Zn endows the Zn/AC full cell with excellent cycle stability, especially at high current densities. A capacity retention rate of nearly 100% can be achieved over 10 000 cycles at 10 A g−1, and 16 000 cycles at 20 A g−1, superior to those of the other reported Zn/AC full cells at high current densities, to the best of the authors' knowledge.
UR - http://www.scopus.com/inward/record.url?scp=85127854460&partnerID=8YFLogxK
U2 - 10.1039/d2ta00697a
DO - 10.1039/d2ta00697a
M3 - 文章
AN - SCOPUS:85127854460
SN - 2050-7488
VL - 10
SP - 7645
EP - 7652
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 14
ER -
