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関連する概念動画

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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Electrolysis03:00

Electrolysis

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In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
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Voltaic/Galvanic Cells02:47

Voltaic/Galvanic Cells

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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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Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

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Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions. 
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DC Battery01:21

DC Battery

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A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
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Alkali Metals03:06

Alkali Metals

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Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
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Updated: Oct 22, 2025

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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再充電可能なNa/Cl2およびLi/Cl2電池

Guanzhou Zhu1, Xin Tian1, Hung-Chun Tai2

  • 1Department of Chemistry and Bio-X, Stanford University, Stanford, CA, USA.

Nature
|August 26, 2021
PubMed
まとめ

研究者らは,高度な炭素電極と新しい電解質を使用して,充電可能なナトリウム/塩素またはリチウム/塩素電池を開発しました. この技術革新により 将来の用途のために エネルギー密度の高い貯蔵が可能になります

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Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
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科学分野:

  • 電気化学
  • 材料科学
  • エネルギー貯蔵

背景:

  • 主要なリチウムチオニル塩化物 (Li-SOCl2) バッテリーは1970年代に発明され,エネルギー密度が高いが,充電できません.
  • これらの主電池は,リチウム金属アノド,無形炭素カトド,およびSOCl2カトライトを使用して,リチウム酸化およびカトライト還元によって放電します.

研究 の 目的:

  • 再充電可能な二次アルカリ金属/塩素電池システムを開発する.
  • 従来のリチウムチオニル塩化原電池の充電不能の限界を克服する.

主な方法:

  • 高微孔性炭素陽性電極を使用した.
  • フッ素添加物でSOCl2にアルミニウム塩化物の出発電解剤を使用した.
  • 負の電極としてナトリウムまたはリチウム金属を使用した.

主要な成果:

  • 充電可能な Na/Cl2 または Li/Cl2 バッテリーシステムが実証されています.
  • 微孔性炭素内の可逆Cl2/NaClまたはCl2/LiClリオックスによる再充電性.
  • 薄いアルカリ-フッ素-ドーピングアルカリ-塩化物固体電解質インターフェースを使用して負の電極を安定させました.

結論:

  • 開発された二次アルカリ金属/塩素電池は,微孔性炭素における可逆性塩素酸化還元化学により,充電可能である.
  • 安定した負の電極のインターフェースは,二次電池の性能にとって不可欠です.
  • これによって 次世代の高エネルギー密度の 再充電電池が作れるようになるでしょう