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由层组装的等级双甲微球作为水性性电池的高效负材料

Jiuli Chang¹, Luyao Ma¹, Wenfang Liang¹

¹School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, PR China.

Journal of colloid and interface science

|June 29, 2023

概括

氧化物 (BiOBr) 微球作为水性性电池 (AAB) 的负电极材料具有前景,具有良好的容量和循环寿命. 这项研究将BiOBr的应用范围扩展到光催化以外的能源储存领域.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

(Bi) 化合物对水性电池 (AAB) 具有吸引力,因为它们在低电位时具有3电子氧化还原化学.
开发新的基于Bi的负电极材料对于推进AAB技术至关重要.

研究的目的:

为AABs合成和评估等级 bismuthyl化物 (BiOBr) 微球作为负电极材料.
研究BiOBr在AAB中的电化学性能,重点关注容量,速率能力和循环稳定性.

主要方法:

使用溶热反应制备了等级 BiOBr 微球.
该材料在AAB中作为负电极进行了测试,电化学性能通过电荷-放电循环,速率测试和长期循环来表征.

主要成果:

BiOBr电极的特定容量为190 mAh g-1在1 A g-1上,容量保留为163 mAh g-1在8 A g-1.1上.
该材料表现出良好的循环性,在1000个循环后保留了85%的容量.
该AAB装置在558W kg-1.1的功率密度下实现了61.5Wh kg-1的能量密度.

结论:

层次 BiOBr 微球是 AAB 的有效负电极材料,利用 Bi 的氧化还原特性和材料的多孔结构.
该研究突出了BiOBr的潜力,传统上是一种光催化剂,用于电池类型的充电存储应用.

关键词:

水性性电池是水性性的电池.比斯穆基化物是一种法拉第克的反应.层次结构结构的层次结构.负的材料是负的材料.

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