Flexible Zinc-Air Batteries with Ampere-Hour Capacities and Wide-Temperature Adaptabilities

Zhong, Xiongwei1; Zheng, Zhiyang1; Xu, Jiahe1; Xiao, Xiao1; Sun, Chongbo1; Zhang, Mengtian1; Ma, Jiabin1; Xu, Baomin2; Yu, Kuang1; Zhang, Xuan1; Cheng, Hui-Ming3,4; Zhou, Guangmin1

2023-02-01

10.1002/adma.202209980

ADVANCED MATERIALS   Impact Factor & Quartile

0935-9648

1521-4095

Flexible Zn-air batteries (FZABs) have significant potentials as efficient energy storage devices for wearable electronics because of their safeties and high energy-to-cost ratios. However, their application is limited by their short cycle lives, low discharge capacities per cycle, and high charge/discharge polarizations. Accordingly, herein, a poly(sodium acrylate)-polyvinyl alcohol (PANa-PVA)-ionic liquid (IL) hydrogel (PANa-PVA-IL) is prepared using a hygroscopic IL, 1-ethyl-3-methylimidazolium chloride, as an additive for twin-chain PANa-PVA. PANa-PVA-IL exhibits a high conductivity of 306.9 mS cm(-1) and a water uptake of 2515 wt% at room temperature. Moreover, a low-cost bifunctional catalyst, namely, Co9S8 nanoparticles anchored on N- and S-co-doped activated carbon black pearls 2000 (Co9S8-NSABP), is synthesized, which demonstrates a low O-2 reversibility potential gap of 0.629 V. FZABs based on PANa-PVA-IL and Co9S8-NSABP demonstrate high discharge capacities of 1.67 mAh cm(-2) per cycle and long cycle lives of 330 h. Large-scale flexible rechargeable Zn-air pouch cells exhibit total capacities of 1.03 Ah and energy densities of 246 Wh kg(cell)(-1). This study provides new information about hydrogels with high ionic conductivities and water uptakes and should facilitate the application of FZABs in wearable electronics.

broad temperature range flexible zinc-air batteries hydrogels ionic liquids wearable electronics

SCI

English

NI Journal Papers

Others

National Key Research and Development Program of China[2019YFA0705700] ; National Natural Science Foundation of China[52072205] ; Guangdong Innovative and Entrepreneurial Research Team Program[2021ZT09L197] ; Shenzhen Science and Technology Program[KQTD20210811090112002] ; Start-up funds of Tsinghua Shenzhen International Graduate School, Fundamental Research (Discipline Arrangement) Project funding from Shenzhen Science and Technology Innovation Committee[JCYJ20200109141014474] ; Guangdong Basic and Applied Basic Research Foundation[2022A1515110117] ; China Postdoctoral Science Foundation[2020M680542]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000934854100001

WILEY-V C H VERLAG GMBH

MATERIALS SCIENCE

Web of Science

1.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst & Tsinghua Shenzhe, Shenzhen Geim Graphene Ctr, Grad Sch, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Chinese Acad Sci, Fac Mat Sci & Energy Engn, Shenzhen 518055, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China

Zhong, Xiongwei,Zheng, Zhiyang,Xu, Jiahe,et al. Flexible Zinc-Air Batteries with Ampere-Hour Capacities and Wide-Temperature Adaptabilities[J]. ADVANCED MATERIALS,2023.

Zhong, Xiongwei.,Zheng, Zhiyang.,Xu, Jiahe.,Xiao, Xiao.,Sun, Chongbo.,...&Zhou, Guangmin.(2023).Flexible Zinc-Air Batteries with Ampere-Hour Capacities and Wide-Temperature Adaptabilities.ADVANCED MATERIALS.

Zhong, Xiongwei,et al."Flexible Zinc-Air Batteries with Ampere-Hour Capacities and Wide-Temperature Adaptabilities".ADVANCED MATERIALS (2023).