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Related Experiment Video

Updated: Jan 15, 2026

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

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

Published on: February 1, 2016

Study on the structure-performance relationship between binder types and aluminum-based lithium adsorbent.

Ben Ma^1,2, Xiaoyu Wang^1,2, Jing Zhou^1,2

¹School of Chemistry & Chemical Engineering, Linyi University, Linyi, China.

Frontiers in Chemistry

|October 13, 2025

Summary

Calcium alginate binder enhances aluminum lithium layered double hydroxide adsorbents for efficient lithium extraction from salt lakes. This granulated adsorbent maintains structural stability and superior adsorption/desorption performance across varying temperatures.

Keywords:

adsorption-desorption aluminum-based lithium adsorbents binders granulation salt lake

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Last Updated: Jan 15, 2026

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

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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

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Published on: August 12, 2013

Area of Science:

Materials Science
Chemical Engineering
Environmental Science

Background:

Aluminum lithium layered double hydroxides (Li/Al-LDH) are cost-effective adsorbents with mild operating conditions.
Powdered Li/Al-LDH suffers from poor fluidity and high dissolution rates, necessitating granulation.
Systematic research on binder effects on granulated Li/Al-LDH performance is lacking.

Purpose of the Study:

To investigate the structure-activity relationship between Li/Al-LDH and three binders: polyvinyl chloride (PVC), polyvinylidene fluoride (PVDF), and calcium alginate (SA).
To evaluate the impact of binder type on adsorption/desorption efficiency, kinetics, and thermodynamics.
To elucidate temperature-dependent adsorption/desorption mechanisms in granulated adsorbents for optimized lithium extraction.

Main Methods:

Preparation and characterization of granulated Li/Al-LDH using PVC, PVDF, and SA binders.
Adsorption and desorption experiments conducted at various temperatures in LiCl solutions.
Analysis of structural stability, adsorption capacity, desorption capacity, and mass transfer mechanisms.

Main Results:

Adsorption/desorption performance significantly varied with temperature and binder type.
PVDF-LDH and PVC-LDH showed structural changes and decreased performance with temperature fluctuations.
SA-LDH maintained structural integrity and excellent adsorption/desorption capabilities, with high capacities (e.g., 5.84 mg/g desorption at 40°C, 5.67 mg/g adsorption at 60°C in 300 ppm LiCl).

Conclusions:

Calcium alginate is a superior binder for Li/Al-LDH granulation, ensuring structural stability and efficient lithium adsorption/desorption.
Temperature plays a critical role in the performance of binder-formulated granulated adsorbents.
SA-LDH offers a promising solution for industrial-scale lithium extraction from salt lakes, optimizing performance through binder selection and temperature control.