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Cited by 328

The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.

Antifreezing Hydrogel with High Zinc Reversibility for Flexible and Durable Aqueous Batteries by Cooperative Hydrated Cations

Open access
Zhu, Minshen, Wang, Xiaojie, Tang, Hongmei, Wang, Jiawei, Hao, Qi, Liu, Lixiang, Li, Yang, Zhang, Kai, Schmidt, Oliver G.·2020·Advanced Functional Materials

Abstract

Hydrogels are widely used in flexible aqueous batteries due to their liquid‐like ion transportation abilities and solid‐like mechanical properties. Their potential applications in flexible and wearable electronics introduce a fundamental challenge: how to lower the freezing point of hydrogels to preserve these merits without sacrificing hydrogels' basic advantages in low cost and high safety. Moreover, zinc as an ideal anode in aqueous batteries suffers from low reversibility because of the formation of insulative byproducts, which is mainly caused by hydrogen evolution via extensive hydration of zinc ions. This, in principle, requires the suppression of hydration, which induces an undesirable increase in the freezing point of hydrogels. Here, it is demonstrated that cooperatively hydrated cations, zinc and lithium ions in hydrogels, are very effective in addressing the above challenges. This simple but unique hydrogel not only enables a 98% capacity retention upon cooling down to −20 °C from room temperature but also allows a near 100% capacity retention with >99.5% Coulombic efficiency over 500 cycles at −20 °C. In addition, the strengthened mechanical properties of the hydrogel under subzero temperatures result in excellent durability under various harsh deformations after the freezing process.

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Metadata

Authors
Zhu, M., Wang, X., Tang, H., Wang, J., Hao, Q., Liu, L., Li, Y., Zhang, K., & Schmidt, O. G.
Venue
Advanced Functional Materials
Publisher
Wiley
Published
2019-11-14
Volume
30
Issue
6
ISSN
  • 1616-301X (ISSN-L)
  • 1616-3028
OpenAlex
W2986137430
Cited by
328
References
38
FWCI
13.39
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Antifreezing Hydrogel with High Zinc Reversibility for Flexible and Durable Aqueous Batteries by Cooperative Hydrated Cations. https://app.cochat.ai/papers/10.1002/adfm.201907218
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Zhu, M., Wang, X., Tang, H., Wang, J., Hao, Q., Liu, L., Li, Y., Zhang, K., & Schmidt, O. G. (2020). Antifreezing Hydrogel with High Zinc Reversibility for Flexible and Durable Aqueous Batteries by Cooperative Hydrated Cations. Advanced Functional Materials. https://doi.org/10.1002/adfm.201907218

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