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Related Concept Videos

Electrodeposition01:08

Electrodeposition

684
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
684
Formation of Complex Ions03:45

Formation of Complex Ions

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A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
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Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

41.8K
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. 
41.8K

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Related Experiment Video

Updated: Jul 30, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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In Situ Formed Gradient Composite Solid Electrolyte Interphase Layer for Stable Lithium Metal Anodes.

Cai Hong Zhang1, Tong Jin1, Jiandong Liu2

  • 1State Key Lab of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.

Small (Weinheim an Der Bergstrasse, Germany)
|May 17, 2023
PubMed
Summary
This summary is machine-generated.

A new gradient composite solid electrolyte interphase layer stabilizes lithium metal anodes (LMAs) by preventing dendrite growth. This innovation enhances battery cycling stability and longevity for next-generation energy storage.

Keywords:
electrolytesgradient compositeinterphase engineeringlithium metal anodes

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Lithium metal anodes (LMAs) offer high capacity but suffer from dendrite growth and interface instability.
  • These issues hinder the practical application of LMAs in advanced rechargeable batteries.
  • Developing stable interfaces is crucial for next-generation battery technologies.

Purpose of the Study:

  • To propose a novel in situ formed artificial gradient composite solid electrolyte interphase (GCSEI) layer for highly stable LMAs.
  • To address challenges of dendrite formation, volume change, and interface instability in LMAs.
  • To enhance the performance and safety of lithium metal batteries.

Main Methods:

  • Fabrication of an in situ formed artificial gradient composite solid electrolyte interphase (GCSEI) layer.
  • Utilizing inner rigid inorganics (Li2S, LiF) and flexible polymers (PEO, PVDF).
  • Testing symmetric cells and Li-GCSEI||NMC full cells using carbonate electrolyte.

Main Results:

  • The GCSEI layer promotes homogeneous lithium plating and accommodates volume changes.
  • Enhanced Li+ ion transport and diffusion kinetics were observed.
  • Symmetric cells showed over 1000 hours of stability at 3 mA cm-2.
  • Full cells achieved 83.4% capacity retention after 500 cycles.

Conclusions:

  • The proposed GCSEI layer effectively stabilizes lithium metal anodes.
  • This strategy offers a new pathway for designing dendrite-free LMAs.
  • The findings contribute to the advancement of high-performance rechargeable batteries.