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相关概念视频

Batteries and Fuel Cells03:12

Batteries and Fuel Cells

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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...
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ATP Driven Pumps I: An Overview01:27

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ATP-driven pumps, also known as transport ATPases, are integral membrane proteins. They have binding sites for ATP located on the membrane's cytosolic side and the ion-conducting domain in the transmembrane region. These pumps use the free energy released from ATP hydrolysis to move the solutes across cell membranes against an electrochemical gradient.
There are four main types of ATP-driven pumps - P-type, V-type, F-type, and ABC transporter. All these pumps are of varying complexities and...
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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,...
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相关实验视频

Updated: Jan 15, 2026

Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing
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聚胺介导质子/TFSI双捕获使基于高压PEO的全固态Li电池成为可能.

You Fan1, Mingli Zhu1, Huicai Wang1

  • 1College of Chemical Engineering, Fuzhou University, Fuzhou, P. R. China.

Advanced materials (Deerfield Beach, Fla.)
|January 14, 2026
PubMed
概括

一种新型聚胺剂有效捕获质子和TFSI离子,防止高压全固态电池 (ASSLB) 的降解,并提高其稳定性和能量密度.

关键词:
质子/TFSI−捕获方式所有固态电池都是固态电池.高电压的高电压的高电压聚乙烯氧化物聚乙烯氧化物聚合物电解质的聚合物电解质.

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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
  • 聚合物化学 聚合物化学

背景情况:

  • 在全固态电池 (ASSLBs) 中,基于聚乙烯氧化物 (PEO) 的固体聚合物电解质 (SPEs) 在高电压 (>3.8 V vs. Li+/Li) 下降解.
  • 这种降解是由腐蚀性酸引起的,主要是二三甲硫尼尔) 胺 (HTFSI),限制了ASSLB的能量密度.
  • 目前的被动策略未能有效地抑制HTFSI生成.

研究的目的:

  • 制定一个积极的战略,以减轻高压ASSLB的退化.
  • 在PEO矩阵内抑制腐蚀性酸 (HTFSI) 的形成.
  • 提高ASSLBs的循环稳定性和能量密度.

主要方法:

  • 一种聚胺基剂被设计用于双捕获质子 (H+) 和TFSI-离子.
  • 该代理利用布伦斯特德基位和H键捐赠者进行静电和H键相互作用.
  • 该剂被用于4.2V的基于LiCoO2的ASSLB中.

主要成果:

  • 聚胺剂有效地捕获了H+和TFSI-离子,抑制了HTFSI的形成.
  • 使用该剂的ASSLB显示出异常的循环稳定性 (>600个周期在1.0°C,65°C).
  • 实现了95.5%的容量保留,优于现有的高压聚合物基ASSLB.

结论:

  • 双捕获主动策略有效地减轻了高压ASSLB的接口和散装降解.
  • 这种方法在PEO矩阵中显著抑制了酸催化链裂变.
  • 这些发现为设计高能量密度ASSLB提供了新的见解.