TY - JOUR
T1 - Controlled Deposition of Zinc Metal Anodes via Selectively Polarized Ferroelectric Polymers
AU - Wang, Yizhou
AU - Guo, Tianchao
AU - Yin, Jian
AU - Tian, Zhengnan
AU - Ma, Yinchang
AU - Liu, Zhixiong
AU - Zhu, Yunpei
AU - Alshareef, Husam N.
N1 - KAUST Repository Item: Exported on 2021-11-11
PY - 2021/11/9
Y1 - 2021/11/9
N2 - Aqueous zinc ion batteries are regarded as ideal candidates for stationary energy storage systems due to their low cost and high safety. However, zinc can readily grow into dendrites, leading to limited cycling performance and quick failure of the batteries. Herein, we propose a novel strategy to mitigate this dendrite problem, in which selectively-polarized ferroelectric polymer material (poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE))) is employed as a surface protective layer on zinc anodes. Such a polarized ferroelectric polymer layer could enable a locally-concentrated zinc ion distribution along the coated surface and thus enable the horizontal growth of zinc plates. As a result, symmetrical zinc batteries using such anodes exhibits long cycling lifespan at 0.2 mA cm−2, 0.2 mAh cm−2 for 2000 hours, and a high rate performance up to 15 mA cm−2. Also, the full cell (including Zn-MnO2 battery and zinc ion capacitor) based on this anode has been demonstrated. This work provides a novel strategy to protect the zinc anode and even other metal anodes exploiting polymer ferroelectricity.
AB - Aqueous zinc ion batteries are regarded as ideal candidates for stationary energy storage systems due to their low cost and high safety. However, zinc can readily grow into dendrites, leading to limited cycling performance and quick failure of the batteries. Herein, we propose a novel strategy to mitigate this dendrite problem, in which selectively-polarized ferroelectric polymer material (poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE))) is employed as a surface protective layer on zinc anodes. Such a polarized ferroelectric polymer layer could enable a locally-concentrated zinc ion distribution along the coated surface and thus enable the horizontal growth of zinc plates. As a result, symmetrical zinc batteries using such anodes exhibits long cycling lifespan at 0.2 mA cm−2, 0.2 mAh cm−2 for 2000 hours, and a high rate performance up to 15 mA cm−2. Also, the full cell (including Zn-MnO2 battery and zinc ion capacitor) based on this anode has been demonstrated. This work provides a novel strategy to protect the zinc anode and even other metal anodes exploiting polymer ferroelectricity.
UR - http://hdl.handle.net/10754/673280
UR - https://onlinelibrary.wiley.com/doi/10.1002/adma.202106937
U2 - 10.1002/adma.202106937
DO - 10.1002/adma.202106937
M3 - Article
C2 - 34752665
SN - 0935-9648
SP - 2106937
JO - Advanced Materials
JF - Advanced Materials
ER -