Modulating Zn deposition via ceramic-cellulose separator with interfacial polarization effect for durable zinc anode

Cao，Jin1,2; Zhang，Dongdong1,2; Gu，Chao3; Zhang，Xinyu4; Okhawilai，Manunya2; Wang，Shanmin3; Han，Jiantao5; Qin，Jiaqian2; Huang，Yunhui5

2021-11-01

10.1016/j.nanoen.2021.106322

Nano Energy   影响因子和分区

2211-2855

The optimization strategies of electrode and electrolyte currently advocated for zinc dendrite suppression remain challenging for aqueous zinc-ion batteries (ZIBs) due to their complex manufacturing processes and non-economic prices. Here, a cellulose nanofibers-ZrO composite (ZC) separator with easily-fabricated and cost-effective features is developed to stabilize the zinc anode. The ZC separator is designed to enable excellent ionic conductivity (4.59 mS cm) and high Zn transfer number (0.69), and the ZrO particles with high dielectric constant (ε = 25) offer a directional electric field via the Maxwell-Wagner polarization effect, which regulates uniform zinc deposition, accelerate the Zn ions diffusion kinetics and repel anions, thus stabilizing zinc anode and suppressing passivation reactions. As a result, ZC separator renders zinc anode with dendrite‐free plating/stripping behavior, high Coulombic efficiency (99.5%) and exceptional cyclability (2000 h under 0.5 mA cm). Additionally, this developed composite separator can be extended to other insulating ceramics, or even random combinations. Moreover, the rate capability and cyclability of the as-assembled Zn||ZnSO||MnO/graphite coin and pouch cells also can be significantly boosted via the ZC separator, accompanied by the remarkable flexibility and integration ability. The ceramics-cellulose separators offer an appealing strategy for constructing advanced zinc anode for large-scale energy storage.

Anode Cellulose separator Dendrites-free Zinc-ion batteries ZrO2

SCI ; EI

英语

ESI高被引

其他

WOS:000703207500001

20212910661126

Anodes ; Cost effectiveness ; Deposition ; Electric fields ; Electrolytes ; Ions ; Manganese oxide ; Polarization ; Separators ; Zinc ; Zirconia

Zinc and Alloys:546.3 ; Electricity: Basic Concepts and Phenomena:701.1 ; Electric Batteries and Fuel Cells:702 ; Electron Tubes:714.1 ; Chemical Operations:802.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Cellulose, Lignin and Derivatives:811.3 ; Organic Polymers:815.1.1 ; Industrial Economics:911.2

2-s2.0-85110442048

Scopus

1.International Graduate Program of Nanoscience & Technology,Chulalongkorn University,Bangkok,10330,Thailand
2.Center of Excellence in Responsive Wearable Materials,Metallurgy and Materials Science Research Institute,Chulalongkorn University,Bangkok,10330,Thailand
3.Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China
4.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao,066004,China
5.State Key Laboratory of Material Processing and Die & Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan,430074,China

Cao，Jin,Zhang，Dongdong,Gu，Chao,et al. Modulating Zn deposition via ceramic-cellulose separator with interfacial polarization effect for durable zinc anode[J]. Nano Energy,2021,89.

Cao，Jin.,Zhang，Dongdong.,Gu，Chao.,Zhang，Xinyu.,Okhawilai，Manunya.,...&Huang，Yunhui.(2021).Modulating Zn deposition via ceramic-cellulose separator with interfacial polarization effect for durable zinc anode.Nano Energy,89.

Cao，Jin,et al."Modulating Zn deposition via ceramic-cellulose separator with interfacial polarization effect for durable zinc anode".Nano Energy 89(2021).