Water cointercalation for high-energy-density aqueous zinc-ion battery based potassium manganite cathode

Sun, Taolei; Nian, Qingshun; Zheng, Shibing; Yuan, Xuming; Tao, Zhanliang

doi:10.1016/j.jpowsour.2020.228758

Cited by 44 publications

(27 citation statements)

References 44 publications

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“…The excess discharge capacity at low current density may be contributed by the conversion reaction of Mn 2+ and MnO x . [ 26 ] The coulombic efficiency of Zn||NHMO battery is close to 100% at different current density. The discharge capacity of Zn||NHMO battery recovery to initial level when the current density increased to 300 mA g –1 , indicating the good reversibility of NHMO material (Figure 3c).…”

Section: Resultsmentioning

confidence: 99%

Hydrogen Bond Shielding Effect for High‐Performance Aqueous Zinc Ion Batteries

Sun

Zheng

Nian

et al. 2022

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Manganese oxides are highly desirable for the cathode of rechargeable aqueous zinc ion batteries (AZIBs) owing to their low cost and high abundance. However, the terrible structure stability of manganese oxide limits its practical application. Here, it is demonstrated that the hydrogen‐bond shielding effect can improve the electrochemical performance of manganese oxide. Briefly, (NH4)0.125MnO2 (NHMO) is prepared by introducing NH4+ into the tunnel structure of α‐MnO2. The robust hydrogen bonds between N‐H and host O atoms can stabilize the lattice structure of α‐MnO2 and suppress the dissolution of Mn element. More importantly, it can also accelerate ions mobility kinetics by weakening the electrostatic interaction of host O atoms. Thus, the fabricated Zn||NHMO battery possesses impressive cycling life (99.5% of capacity retention over 10 000 cycles) and rate capability (109 mA h g–1 of discharge capacity at 6000 mA g–1). Comprehensive analyses reveal the essences of interfacial charge and bulk ions transfer. This finding opens new opportunities for the development of high‐performance AZIBs.

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Section: Resultsmentioning

confidence: 99%

Hydrogen Bond Shielding Effect for High‐Performance Aqueous Zinc Ion Batteries

Sun

Zheng

Nian

et al. 2022

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“…Further, the capacitance contribution is calculated to follow the equation i = k 1 v + k 2 v 1/2 , where k 1 v refers to current from capacitance contribution, and the k 2 v 1/2 corresponds to diffusion contribution. [ 48 ] As shown in Figure 4c, the capacitance contribution increases from 73.3% to 93% with increased scan rate. 85.8% capacitance contribution is obtained at a scan rate of 6 mV s –1 , implies a capacitive‐like surface‐controlled process of the PNAQ electrode in symmetrical APBs (Figure 4d).…”

Section: Resultsmentioning

confidence: 95%

Bipolar Organic Polymer for High Performance Symmetric Aqueous Proton Battery

Sun

Zheng

et al. 2021

Small Methods

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“…of manganese-based cathode materials, which in turn affects the ion-transfer mechanism and electrochemical performance. Besides the above methods, sol-gel method, [84] microemulsion method, [85,86] molten salt method, [87] thermal decomposition method, [88] co-precipitation method, [89] etc. have also been reported.…”

Section: Electrodeposition Methodsmentioning

confidence: 99%

Synthesis and Performance Optimization of Manganese‐based Cathode Materials for Zinc‐Ion Batteries

Wang

Sang

Zhao

et al. 2021

Batteries & Supercaps

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Owing to the low cost, high specific capacity and high safety, zinc-ion batteries (ZIBs) have great advantages in replacing lithium-ion batteries to meet future demand for energy storage. Manganese-based cathode materials, benefiting from the abundant reserves, non-toxic, acceptable capacity and long cycle stability, have been widely developed and applied to develop high performance ZIBs. Unfortunately, poor conductivity, Mn 2 + dissolution and unstable structure hinder it to achieve an ideal electrochemical performance. Thus, an overview of the cathodic performance optimization strategies and the synthesis is provided. Firstly, the synthesis methods and their influence on the morphology and structure are summarized. Secondly, various strategies of performance optimization, including structure design, compositing with conductive materials, preintercalation, defect engineering and electrochemical activation, are categorized and analyzed in detail. Lastly, perspectives on the subsequent performance optimization are proposed. It is expected that this review will be beneficial to future scientific research on tailoring manganese-based cathode materials for ZIBs.

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Water cointercalation for high-energy-density aqueous zinc-ion battery based potassium manganite cathode

Cited by 44 publications

References 44 publications

Hydrogen Bond Shielding Effect for High‐Performance Aqueous Zinc Ion Batteries

Hydrogen Bond Shielding Effect for High‐Performance Aqueous Zinc Ion Batteries

Bipolar Organic Polymer for High Performance Symmetric Aqueous Proton Battery

Synthesis and Performance Optimization of Manganese‐based Cathode Materials for Zinc‐Ion Batteries

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