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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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Network Covalent Solids02:18

Network Covalent Solids

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Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
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Metallic Solids02:37

Metallic Solids

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Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
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Structures of Solids02:22

Structures of Solids

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Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
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Molecular and Ionic Solids02:54

Molecular and Ionic Solids

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Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
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Molecular Comparison of Gases, Liquids, and Solids02:26

Molecular Comparison of Gases, Liquids, and Solids

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Particles in a solid are tightly packed together (fixed shape) and often arranged in a regular pattern; in a liquid, they are close together with no regular arrangement (no fixed shape); in a gas, they are far apart with no regular arrangement (no fixed shape). Particles in a solid vibrate about fixed positions (cannot flow) and do not generally move in relation to one another; in a liquid, they move past each other (can flow) but remain in essentially constant contact; in a gas, they move...
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関連する実験動画

Updated: Jan 29, 2026

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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固体電解質インターフェーザは,固体電池の安定したシリコンアノドの空間再構成を介して,グラデント互換性を持つ固体電解質インターフェーズです.

Mingxue Zuo1, Xia Hu1, Changzhi Ji2

  • 1Shandong Key Laboratory of Advanced Electrochemical Energy Storage Technologies, College of New Energy, China University of Petroleum (East China), Qingdao 266580, China.

Journal of the American Chemical Society
|January 28, 2026
PubMed
まとめ
この要約は機械生成です。

固体電解質インターフェーズ (SEI) を設計し,固体電池 (SSB) のシリコンアノドのためにサイクロテトラシロキサンを使用しました. これにより,電極インターフェースが安定し,高容量で長寿命のエネルギー貯蔵が可能になります.

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Metal-Assisted Electrochemical Nanoimprinting of Porous and Solid Silicon Wafers
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関連する実験動画

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科学分野:

  • 材料科学 材料科学とは
  • 電気化学 電気化学について
  • バッテリー技術 バッテリー技術

背景:

  • シリコンアノドは,固体電池 (SSB) のための高いエネルギー密度を提供します.
  • シリコンアノドの体積膨張は,固体電解質インターフェーズ (SEI) 破裂とインターフェースの不安定を引き起こします.
  • SSBの硬直なインターフェイスには,体積の変化に対する機械的なバッファリングが欠けています.

研究 の 目的:

  • SSBにおけるシリコンアノドのための安定したSEI構造を開発する.
  • サイクリング中のSEI骨折と電極の不安定性の課題に対処するために.
  • シリコンベースのSSBの性能とサイクル寿命を向上させる.

主な方法:

  • ポリマー電解質にサイクロテトラシロキサンを導入し,SEI構造の"モルティス・テノン"を作り出します.
  • SEIの安定性のために,サイクロテトラシロキサンとLiFに富んだ無機相の相互接続を達成しました.
  • 製造され,テストされたSi RGBの半セルとNCM811のRGBSiとLFPのRGBSiのフルセル.

主要な成果:

  • "モルティス・テノン"のSEIは,大きな体積の変化下で堅固な粘着と構造的安定性を示した.
  • 半電池は12 A g-1で1553.6 mAhの高容量を達成しました.
  • 完全な細胞は,優れた容量保持 (97.6%以上300サイクルNCM811disabledSiのために) と低衰退率 (LFPdisabledSiのために0.07‰毎サイクル) を700サイクル以上を示した.

結論:

  • 開発されたSEIエンジニアリング戦略は,SSBのシリコンアノドを効果的に安定させます.
  • このアプローチにより,エネルギー密度が高いシリコンベースのSSBの実践的な応用が可能になります.
  • "モルティス・テノン"SEIは,耐久性があり高性能なエネルギー貯蔵ソリューションのための経路を提供します.