相关实验视频
Updated: Jan 10, 2026

09:04
Fabrication of VB2/Air Cells for Electrochemical Testing
Published on: August 5, 2013
12.4K
高特异性容量无形-复合离子电池阳极
Chunyi Niu1,2, Yinzhao Rao3, Xiaorui Wang1,2
1Shandong Key Laboratory of Green Electricity & Hydrogen Science and Technology, Shandong Institute of Petroleum and Chemical Technology, Dongying 257061, China.
ACS omega
|November 24, 2025
概括
将氧化/化加入氧化-二氧化玻璃中可以提高离子电池阳极性能. 这种修改提高了特定容量和导电性,同时减少了下一代储能器件的阻抗.
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:
- 无形氧化-二氧化 (V2O5-TeO2) 玻璃显示出离子电池阳极的前景.
- 然而,这些材料在最初的循环中遭受了显著的容量损失和不良的保留.
研究的目的:
- 为了提高基于V2O5-TeO2的玻璃的电化学性能,用于离子电池阳极.
- 解决初始产能损失和保持低产能的问题.
主要方法:
- 将氧化/化 (NiO/NiSe) 纳入V2O5-TeO2玻璃系统.
- 电化学表征包括特定容量,容量保留和电化学阻抗光谱学.
- 密度函数理论 (DFT) 模拟来研究电子特性和吸附.
主要成果:
- V5+含量显著下降,而V4+和V3+含量增加,表明发生了氧化还原转化.
- 最初的特定容量从699.8升至1048.5mAh/g.
- 电化学阻抗从648降至242 Ω,导电率增加了12.5%.
结论:
- NiO/NiSe的结合有效地减轻了初始容量损失,并改善了V2O5-TeO2阳极的容量保留.
- 经过修改的半导体材料表现出增强的存储特性,由于导电性提高和阻抗降低.
- 这项研究提出了优化玻璃基材料用于先进离子电池的新策略.
相关概念视频
Batteries and Fuel Cells
30.7K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
30.7K
Voltaic/Galvanic Cells
62.9K
Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
62.9K

