Low-Cost Polyanion-Type Sulfate Cathode for Sodium-Ion Battery,Advanced Energy Materials

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Low-Cost Polyanion-Type Sulfate Cathode for Sodium-Ion Battery
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2021-10-10 , DOI: 10.1002/aenm.202101751
Yun Gao ₁ , Hang Zhang ₁ , Xiao‐Hao Liu ₁ , Zhuo Yang ₁ , Xiang‐Xi He ₁ , Li Li ₁ , Yun Qiao ₁ , Shu‐Lei Chou _{1,

2}

Affiliation

Recently, environmental degradation along with the energy crisis has led to an urgent necessity to develop renewable and clean energy storage devices. The sodium ion batteries (SIBs) have become promising candidates in the whole energy storage system, due to its rich and low-cost sodium resources. To accelerate the commercialization of SIBs, the energy density of SIBs needs to be further improved. Increasing the operating voltage of SIBs is considered to be an effective method, which requires stable and high-voltage cathode materials. Comparatively, polyanionic sulfate materials (PSMs) with stable skeletons, adjustable structures, operational safety, and the high electronegativity of SO₄²⁻ are believed to be the most promising high-energy-cathodes. In this review, recent progresses on several typical sulfates for SIBs are summarized. What's more, based on their intrinsic characteristics, the structures and kinetic behaviors of PSMs are also discussed. Reported measures to optimize their electrochemical performances and structural stability are summarized and reviewed. The key challenges and corresponding opportunities for PSMs are also discussed. The insights presented in this review may be a guide for designing and developing stable and practical PSMs for room-temperature SIBs, which is conducive to promoting their industrialization.

中文翻译：

用于钠离子电池的低成本聚阴离子型硫酸盐正极

近年来，随着能源危机和环境恶化，迫切需要开发可再生和清洁的能源存储设备。钠离子电池（SIBs）因其丰富且低成本的钠资源而成为整个储能系统中很有前景的候选者。为加速SIBs的商业化，需要进一步提高SIBs的能量密度。提高SIBs的工作电压被认为是一种有效的方法，这需要稳定和高压的正极材料。相比之下，聚阴离子硫酸盐材料（PSMs）具有骨架稳定、结构可调、操作安全以及SO ₄²⁻的高电负性等优点。被认为是最有前途的高能阴极。在这篇综述中，总结了几种典型的 SIB 硫酸盐的最新进展。更重要的是，基于它们的内在特性，还讨论了PSMs的结构和动力学行为。总结和回顾了已报告的优化其电化学性能和结构稳定性的措施。还讨论了 PSM 面临的主要挑战和相应的机遇。本综述中提出的见解可为设计和开发用于室温 SIB 的稳定且实用的 PSM 提供指导，有利于促进其产业化。

更新日期：2021-11-11

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