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関連する概念動画

Batteries and Fuel Cells03:12

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...
DC Battery01:21

DC Battery

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,...
The Electrical Double Layer01:30

The Electrical Double Layer

In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
Electrochemical Cells01:28

Electrochemical Cells

Electrochemical cells are systems that convert chemical energy into electrical energy or use electrical energy to drive chemical reactions. They consist of two electrodes in contact with an electrolyte, where redox reactions enable electron transfer. Most electrochemical cells include two half-cells connected by an external wire for electron flow and a salt bridge for ion flow. The salt bridge contains an electrolyte solution and maintains charge neutrality by allowing ions—not electrons—to...
Processes at Electrodes01:30

Processes at Electrodes

The electrode interacts with ions in the electrolyte solution at its interface. The rate of oxidation and reduction depends on the speed at which electrons can transfer through this interface. As ions attach to or leave the electrode surface, the electrode acquires a charge, and an electrical potential forms across the interface, making the process more difficult to reach equilibrium. The charge on the electrode affects the local ion concentrations in the solution, though thermal motion...
Electrochemistry: Overview01:04

Electrochemistry: Overview

Electrochemistry is the branch of chemistry that studies the relationship between electrical quantities and chemical reactions, particularly oxidation and reduction. Oxidation is the loss of electrons from a substance, whereas reduction refers to the gain of electrons. A substance with a strong electron affinity is called an oxidizing agent (oxidant), and a reducing agent (reductant) is a species that donates electrons. Oxidation and reduction processes are pivotal to electrochemical reactions,...

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関連する実験動画

Updated: May 15, 2026

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells
12:28

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Published on: February 1, 2016

リチウムイオン充電電池:視点の視点

John B Goodenough1, Kyu-Sung Park

  • 1Texas Materials Institute and Materials Science and Engineering Program, The University of Texas at Austin, Austin, Texas 78712, USA. jgoodenough@mail.utexas.edu

Journal of the American Chemical Society
|January 9, 2013
PubMed
まとめ

研究者は,電気自動車のエネルギー貯蔵と再生可能エネルギーの改善のために,リチウムイオンを超えて新しいバッテリー化学を調査しています. 新しい戦略は,より安全で効率的で費用対効果の高い充電電池のための先進的な電極材料と電解質に焦点を当てています.

科学分野:

  • 電気化学 電気化学について
  • マテリアルサイエンス 材料科学
  • エネルギー貯蔵 エネルギー貯蔵

背景:

  • 従来の充電式電池は,固体電極と液体電解質に依存し,エネルギー密度,サイクル寿命,安全性の制限に直面しています.
  • 電解質窓,電極/電解質インターフェースの特性,および受容層の形成は,バッテリーの性能と長寿に大きな影響を与えます.
  • 現在のリチウムイオン電池技術は,コストと性能の制約のために,電気自動車とグリッド規模の再生可能エネルギー貯蔵の需要を満たすのに苦労しています.

研究 の 目的:

  • 現在の充電電池技術,特にリチウムイオン電池の限界を見直す.
  • 進行中の漸進的な改善を強調し,次世代のバッテリー開発のための新しい戦略を探求する.
  • 化学者がバッテリーの性能と費用対効果を向上させるために貢献する機会を特定する.

主な方法:

  • 再充電電池の電極材料,電解質特性,およびインターフェイス現象の分析.
  • パッシベーション層の形成とそのイオン伝送とバッテリーサイクル寿命への影響について調べる.
  • 代替的な電極化学の探査,移動反応やフロー・スルー・レドックス分子,固体電解質を含む.

主要な成果:

  • リチウムイオン電池の漸進的な改善は,受動層の管理,イオン転送の強化,電極形態の最適化に焦点を当てています.

さらに関連する動画

Construction and Testing of Coin Cells of Lithium Ion Batteries
07:23

Construction and Testing of Coin Cells of Lithium Ion Batteries

Published on: August 2, 2012

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries
10:41

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries

Published on: May 22, 2018

関連する実験動画

Last Updated: May 15, 2026

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells
12:28

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Published on: February 1, 2016

Construction and Testing of Coin Cells of Lithium Ion Batteries
07:23

Construction and Testing of Coin Cells of Lithium Ion Batteries

Published on: August 2, 2012

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries
10:41

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries

Published on: May 22, 2018

  • 新しい戦略は,2電子のリドックスセンター,異位反応材料 (例えば硫黄),液体カトド,空気カトドの探査を含む.
  • 固体電解質分離膜の開発は,有機と水性電解質を組み合わせる可能性を秘めています.

    • 結論:

    • 電気自動車とグリッドストレージのための費用対効果の高い高性能充電電池の開発には,依然として大きな課題があります.
    • 従来のリチウムイオンシステムを超えた新しいアプローチは,将来の進歩に不可欠です.
    • 特に化学者を含む学際的な協力は,バッテリー材料と設計の革新に不可欠です.