Huaisheng Ao

Changzhou University

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Yitai Qian

Chinese Academy of Medical Sciences & Peking Union Medical College

Zhiguo Hou

University of Science and Technology of China

Yongchun Zhu

University of Science and Technology of China

Mengke Liu

Qingdao Institute of Bioenergy and Bioprocess Technology

Yuzhe Zhang

Changzhou University

Yongchun Zhu

University of Science and Technology of China

Xueqian Zhang

Hefei Normal University

Xudong Zheng

Changzhou University

Jian Rong

Changzhou University

Wenlong Cai

Sichuan University

Cooperative Institutions

University of Science and Technology of China

Hefei National Center for Physical Sciences at Nanoscale

Changzhou University

Chinese Academy of Sciences

Shandong University

Hefei University

Wuhan University of Technology

National Synchrotron Radiation Laboratory

Jiangsu University

Central South University

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Enamel-like Layer of Nanohydroxyapatite Stabilizes Zn Metal Anodes by Ion Exchange Adsorption and Electrolyte pH Regulation

ACS Nano (2022)

Kaiwen Qi Weiduo Zhu Xiaotan Zhang Mengke Liu Huaisheng Ao

The instability of Zn anode caused by severe dendrite growth and side reactions has restricted the practical applications of aqueous zinc-ion batteries (AZIBs). Herein, an enamel-like layer of nanohydroxyapatite (Ca5(PO4)3(OH), nano-HAP) is constructed on Zn anode to enhance its stability. Benefiting from the ion exchange between Zn2+ and Ca2+, the adsorption for Zn2+ in enamel-like nano-HAP (E-nHAP) layer can effectively guide Zn deposition, ensuring homogeneous Zn2+ flux and even nucleation sites to suppress Zn dendrites. Meanwhile, the low pH of acidic electrolyte can be regulated by slightly soluble nano-HAP, restraining electrolyte corrosion and hydrogen evolution. Moreover, the E-nHAP layer features high mechanical flexibility due to its enamel-like organic-inorganic composite nanostructure. Hence, symmetric cells assembled by E-nHAP@Zn show superior stability of long-term cycling at different current densities (0.1, 0.5, 1, 5, and 10 mA cm-2). The E-nHAP@Zn∥E-nHAP@Cu cell exhibits an outstanding cycling life with high Coulombic efficiency of 99.8% over 1000 cycles. Notably, the reversibility of full cell based on CNT/MnO2 cathode can be effectively enhanced. This work shows the potential of drawing inspiration from biological nanostructure in nature to develop stable metal electrodes.

10.1021/acsnano.2c02448

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Citations (57)

A High‐Energy and Long‐Life Aqueous Zn/Birnessite Battery via Reversible Water and Zn²⁺ Coinsertion

Small (2020)

Zhiguo Hou Mengfei Dong Yali Xiong Xueqian Zhang Huaisheng Ao

Aqueous rechargeable Zn/birnessite batteries have recently attracted extensive attention for energy storage system because of their low cost and high safety. However, the reaction mechanism of the birnessite cathode in aqueous electrolytes and the cathode structure degradation mechanics still remain elusive and controversial. In this work, it is found that solvation water molecules coordinated to Zn2+ are coinserted into birnessite lattice structure contributing to Zn2+ diffusion. However, the birnessite will suffer from hydroxylation and Mn dissolution with too much solvated water coinsertion. Through engineering Zn2+ primary solvation sheath with strong-field ligand in aqueous electrolyte, highly reversible [Zn(H2 O)2 ]2+ complex intercalation/extraction into/from birnessite cathode is obtained. Cathode-electrolyte interface suppressing the Mn dissolution also forms. The Zn metal anode also shows high reversibility without formation of "death-zinc" and detrimental dendrite. A full cell coupled with birnessite cathode and Zn metal anode delivers a discharge capacity of 270 mAh g-1 , a high energy density of 280 Wh kg-1 (based on total mass of cathode and anode active materials), and capacity retention of 90% over 5000 cycles.

Birnessite

Prussian blue

10.1002/smll.202001228

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Citations (86)

Electrolytes additives for Zn metal anodes: regulation mechanism and current perspectives

Rare Metals (2024)

Yuzhe Zhang Huaisheng Ao Qi Dong Shaojie Zhang Zhiguo Hou

10.1007/s12598-024-02705-w

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Citations (1)

Dipole Moment Dictates the Preferential Immobilization in Gel Electrolytes for Ah‐level Aqueous Zinc‐Metal Batteries

Angewandte Chemie (2024)

Shaojie Zhang Huaisheng Ao Jingjing Dong Dongdong Wang Chenggang Wang

Aqueous Zn‐metal batteries are of great interest due to their high material abundance, low production cost, and excellent safety. However, they suffer from severe side reactions and notorious dendrite growth closely related to electrolytes. Here, in‐situ generated zwitterionic polymers are used as gel electrolytes to overcome these problems. It is shown that anions and H2O, but not anions and cations, are preferentially immobilized at different sites of zwitterionic polymers, facilitating the free migration of Zn2+ and reducing the side reactions. This immobilization can be associated with the dipole moment of zwitterionic polymers. As a result, poly[3‐dimethyl(methacryloyl oxyethyl) ammonium propane sulfonate] (PDMAPS) stands out from a series of zwitterionic polymers and outperforms the other candidates in electrochemical performance. The symmetric cells using PDMAPS smoothly operate ~9000 h at 0.5 mA cm‐2 for 0.5 mAh cm‐2, much better than the controls. Moreover, PDMAPS enables an Ah‐level pouch cell for continuous cycling. These results not only benefit the rational molecular design of advanced electrolytes, but also demonstrate the promising potential of zwitterionic polymers in aqueous Zn‐metal batteries.

10.1002/ange.202414702

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Rechargeable aqueous hybrid ion batteries: developments and prospects

Journal of Materials Chemistry A (2019)

Huaisheng Ao Yingyue Zhao Jie Zhou Wenlong Cai Xiaotan Zhang

A comprehensive description of the advantage, types, developments and future prospects of rechargeable aqueous hybrid ion batteries.

10.1039/c9ta06433h

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Citations (144)

Aqueous Electrolyte with Moderate Concentration Enables High-Energy Aqueous Rechargable Lithium Ion Battery for Large Scale Energy Storage

SSRN Electronic Journal (2021)

Xueqian Zhang Jiawu Chen Zhibin Xu Qi Dong Huaisheng Ao

The intrinsic safe and environmentally friendly aqueous rechargeable lithium ion battery (ARLIB) is a promising candidate for large scale energy storage system application. However, the low energy density and limited cycle life hamper its practical application. Here, a deep eutectic electrolyte composed of LiClO4·3H2O and urea with a moderate concentration of 5 M is explored, in which the population of free water molecules is depleted leading to the expanded electrochemical stability window to ~3.2 V. In addition, the diminished population of free water suppresses the anodic Al dissolution. Combining a grapheme coating, the Al current collector exhibits strong corrosion resistant. A Li4Ti5O12/LiMn2O4 battery of 2.2 V using such electrolyte and current collector delivers cycle life up to 1000 times and a high energy density of 125 Wh kg-1. The results open a new avenue to advance high-energy ARLIB, contributing to the low cost and grid-scale energy storage applications.

10.2139/ssrn.3967011

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In-situ formation of hierarchical solid-electrolyte interphase for ultra-long cycling of aqueous zinc-ion batteries

Nano Research (2022)

Shaojie Zhang Jiajia Ye Huaisheng Ao Mingying Zhang Xilong Li

Overpotential

Galvanic anode

Interphase

Dendrite (mathematics)

10.1007/s12274-022-4688-5

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Citations (28)

Zincophilic and slightly hydrophobic separator with multifunctional groups enables dendrite-free Zn Metal anode via ion sieving and interfacial confinement effect

Chemical Engineering Journal (2024)

Huaisheng Ao Tao Ma Rong Wang Shaojie Zhang

Separator (oil production)

Dendrite (mathematics)

10.1016/j.cej.2024.159115

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A large format aqueous rechargeable LiMn2O4/Zn battery with high energy density and long cycle life

Science China Materials (2020)

Zhiguo Hou Xueqian Zhang Mengfei Dong Yali Xiong Zixiang Zhang

Energy density

10.1007/s40843-020-1503-7

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Citations (16)

N-Doped carbon nanotubes decorated with Fe/Ni sites to stabilize lithium metal anodes

Inorganic Chemistry Frontiers (2020)

Guannan Xiao Wenlong Cai Linqin Zhu Yuting Fang Huaisheng Ao

Use of N-doped carbon nanotubes decorated with Fe/Ni sites can significantly enhance the cycle life of a symmetric cell to up to 1200 h as well as yield a lowered hysteresis.

Carbon fibers

Hysteresis

Lithium metal

10.1039/d0qi00501k

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Citations (15)