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Batteries and Fuel Cells

Batteries and Fuel Cells

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...

Ionic Bonding and Electron Transfer

Ionic Bonding and Electron Transfer

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.

Ion Exchange

Ion Exchange

Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...

Voltaic/Galvanic Cells

Voltaic/Galvanic Cells

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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Updated: Sep 9, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

準固体リチウム電池の内蔵互換性のある電極と電解質のインターフェーズ

Tao Zhang¹, Zhengyuan Shen^1,2, Xinhui Pan¹

¹Shandong Key Laboratory of Advanced Chemical Energy Storage and Intelligent Safety, Advanced Technology Research Institute, Beijing Institute of Technology, Jinan, 250300, China.

Angewandte Chemie (International ed. in English)

|September 5, 2025

まとめ

この研究は,固体ポリマー電解質と電極の間のインタフェースを最適化することによって,リチウム硫黄電池の性能を向上させます. 新しいin-situポリメリゼーション戦略により,電極と電解質の互換性が向上し,バッテリーのサイクル寿命と安定性が向上します.

キーワード:

エレクトロドと電解質のインターフェーズリチウム金属アノドポリマー電解質固体リチウム硫黄電池硫化ポリアクリロニトリルカトド

さらに関連する動画

Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing

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Published on: March 7, 2018

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Published on: November 11, 2013

関連する実験動画

Last Updated: Sep 9, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing

Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing

Published on: March 7, 2018

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Published on: November 11, 2013

科学分野:

材料科学
電気化学
エネルギー貯蔵

背景:

リチウム硫黄 (Li-S) バッテリーは高いエネルギー密度と低コストを提供します.
硫化ポリアクリロニトリル (SPAN) カトドは有望であるが,リチウム金属アノドによって制限されている.
固体電解質は,Li-S電池の互換性と安全性を改善するために不可欠です.

研究の目的:

固体リチウム硫黄電池の二重インターフェース最適化戦略を開発する.
固体ポリマー電解質 (SPE) とリチウム金属アノド/SPANカトドのインターフェイス互換性を向上させる.
Li-S細胞の電気化学的性能と安定性を向上させるため

主な方法:

1,3-ダイオクソラン (DOL) のインシットポリメリゼーション
ポリメリゼーションを誘発するために,SPE内に事前に埋められたイニシアターを使用します.
フロロエチレン炭酸 (FEC) を組み込み,保護インターフェーズを形成する.

主要な成果:

電極/電解質のインターフェイスインピデンスが大幅に減少した.
インターフェイスの安定性とサイクル寿命の改善 (90%の保持率で0. 5°Cで200サイクル)
安定したカトドの電解質インターフェーズによるポリ硫化物溶解の防止

結論:

インサイトポリメリゼーション戦略は,Li-S電池のインターフェイス互換性を効果的に改善します.
このアプローチは,高エネルギー固体Li-S電池を開発するための有望な経路を提供します.
最適化されたインターフェースは,現在の Li-S バッテリー技術の限界を克服する鍵です.