# Innovative Biobased Thermoplastic Binders for Sustainable Lithium-Ion Batteries

## TL;DR

This paper introduces a new biobased polymer that can replace a common binder in lithium-ion batteries, offering a sustainable and high-performing alternative.

## Contribution

The study develops and evaluates a novel biobased polymer (ISB-25PEG) as a sustainable alternative to PVDF in lithium-ion batteries.

## Key findings

- ISB-25PEG binder shows superior adhesion and cohesion compared to PVDF.
- Battery performance with ISB-25PEG is comparable to traditional PVDF binders.
- The polymer is a promising sustainable alternative for next-generation batteries.

## Abstract

The
growing global demand for batteries has driven the search for
sustainable materials for energy storage applications. One promising
approach to enhance the sustainability of lithium-ion batteries (LIBs)
is replacing poly­(vinylidene fluoride) (PVDF) with biobased polymers
as binders. However, the primary challenge lies in identifying biobased
binders that can meet the mechanical and electrochemical performance
requirements necessary for high-efficiency batteries. Balancing sustainability
with performance remains an obstacle in the development of biobased
alternatives. This study explores the potential of novel biobased
polymers to replace PVDF as a binder in LFP cathodes. Biobased polymers,
synthesized from isosorbide and poly­(ethylene glycol) (PEG), were
developed, and the results show that cathodes using the ISB-25PEG
binder exhibit superior adhesion, cohesion, and battery performance
that is comparable to that of the traditional PVDF binder. These findings
highlight the potential of ISB-25PEG as a sustainable and high-performance
alternative to the next generation of energy storage devices, marking
an important step forward in the development of environmentally friendly
battery technologies.