Steel Anti‐Corrosion Strategy Enables Long‐Cycle Zn Anode (Adv. Energy Mater. 1/2023)

Tian, Han; Yang, Jinzhu; Deng, Yirui; Tang, Wenhao; Liu, Ruiping; Xu, Chenyang; Peng, Han; Fan, Hong Jin

doi:10.1002/aenm.202370004

Cited by 31 publications

(35 citation statements)

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“…[ 38 ] During 3D diffusion, the Zn 2+ diffusion on Zn surface is constrained to achieve direct and uniform deposition. [ 39 ] In contrast, the ZSO+DASS electrolyte in the symmetric battery exhibits a transient 2D diffusion followed by stable 3D diffusion, enabling uniform Zn deposition. [ 40 ] Furthermore, to illustrate the function of the DASS coordination layer in regulating Zn 2+ diffusion, the Zn 2+ concentration distribution on Zn surface in ZSO and ZSO+DASS electrolyte is simulated.…”

Section: Resultsmentioning

confidence: 99%

Interfacial Double‐Coordination Effect Guiding Uniform Electrodeposition for Reversible Zinc Metal Anode

Cao,

Sun,

Zhang

et al. 2023

Advanced Energy Materials

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The long‐term reversible plating/stripping of Zn metal anode is a critical aspect within aqueous zinc‐ion batteries (ZIBs). However, it is limited by uncontrolled electrodeposition and side reactions occurring at the anode/electrolyte interface. Guided by the metal‐coordination chemistry, a novel additive, sodium diphenylamine sulfonate (DASS), is added into ZnSO4 electrolyte to guide stably invertible zinc deposition. Theoretical calculations and experimental results reveal that the DASS can adsorbed on the Zn anode surface due to the strong double coordination effect between N, S sites and Zn (Zn─N, Zn─S), and this adsorbed DASS layer can not only prevent the intimate contact between H2O and anode to inhibit interfacial side reactions, but also guide the 3D Zn2+ion diffusion and uniform electrodeposition to inhibit zinc dendrites. Consequently, the DASS additive enables an ultra‐long stable cycling up to 2400 h at 1 mA cm−2 (1 mAh cm−2), even at an ultra‐high current density of 20 mA cm−2, a stable cycling of 250 h is demonstrated, highlighting the reliable coordination effect at the anode/electrolyte interface. This study offers a new perspective on the interfacial double‐coordination effect for achieving highly reversible Zn metal anodes in aqueous rechargeable zinc‐ion batteries.

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Section: Resultsmentioning

confidence: 99%

Interfacial Double‐Coordination Effect Guiding Uniform Electrodeposition for Reversible Zinc Metal Anode

Cao,

Sun,

Zhang

et al. 2023

Advanced Energy Materials

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“…It suggests fewer interfacial defects in PEDOT:PSS+CDs-N OSC, which could depress the charge recombination. [26] To evaluate the charge recombination behavior of OSCs, the relationship between V oc , J sc , and light intensity (P light ) was studied. V oc as a function of P light is shown in Figure S11a (Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Amine‐Functionalized Carbon Dots as PEDOT:PSS Dopants for Organic Solar Cells

Li,

Wang,

Zhong

et al. 2023

Adv Materials Inter

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The hole transport layer (HTL) is an important component in organic solar cells (OSCs). As a commonly used HTL, poly(3,4‐ethylenedioxythiophene):poly(styrene‐sulfonate) (PEDOT:PSS) in OSCs generally exhibits relatively low conductivity, hindering device performance improvement. Herein, amine‐functionalized carbon dots (CDs‐N) are introduced as dopants of PEDOT:PSS, which can effectively enhance the HTL conductivity while maintaining a similar work function. The PEDOT:PSS+CDs‐N devices exhibit higher power conversion efficiencies due to the improved charge extraction ability. It is found that the larger conjugated backbones of CDs‐N and the amine functional groups interacting with PSS are keys for such optimization. This work illustrates the potential of CDs for the applications on interface layers in OSCs.

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“…Although the additive does not decompose after adsorption, it can spontaneously form a uniform thin layer through the Zn−O bond. This organic absorption layer has a high zinc affinity, which can effectively block the transport of H 2 O and SO 4 2− , thus inhibiting the HER reaction [34] …”

Section: Approaches To Construct In‐built Sei For Aqueous Zinc Anodementioning

confidence: 99%

Constructing Solid Electrolyte Interphase for Aqueous Zinc Batteries

Li,

Yu,

Huang

et al. 2023

Angew Chem Int Ed

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Problems of zinc anode including dendrite and hydrogen evolution seriously degrade the performance of zinc batteries. Solid electrolyte interphase (SEI), which plays a key role in achieving high reversibility of lithium anode in aprotic organic solvent, is also beneficial to performance improvement of zinc anode in aqueous electrolyte. However, various studies about interphase for zinc electrode is quite fragmented, and lack of deep understanding on root causes or general design rules for SEI construction. And water molecules with high reactivity brings serious challenge to the effective SEI construction. Here, we reviewed the brief development history of zinc batteries firstly, then summarized the approaches to construct SEI in aqueous electrolyte. Furthermore, the formation mechanisms behind approaches are systematically analyzed, together with discussion on the SEI components and evaluation on electrochemical performance of zinc anode with various types of SEI. Meanwhile, the challenge between lab and industrialization are also discussed.

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Steel Anti‐Corrosion Strategy Enables Long‐Cycle Zn Anode (Adv. Energy Mater. 1/2023)

Cited by 31 publications

References 0 publications

Interfacial Double‐Coordination Effect Guiding Uniform Electrodeposition for Reversible Zinc Metal Anode

Interfacial Double‐Coordination Effect Guiding Uniform Electrodeposition for Reversible Zinc Metal Anode

Amine‐Functionalized Carbon Dots as PEDOT:PSS Dopants for Organic Solar Cells

Constructing Solid Electrolyte Interphase for Aqueous Zinc Batteries

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