Plasma jet printing induced high-capacity graphite anodes for sustainable recycling of lithium-ion batteries

DOI: 10.1016/j.carbon.2022.07.027

Authors: Madhushri Bhar (Indian Institute of Technology Hyderabad) , Avishek Dey (The Open University) , Sourav Ghosh (Indian Institute of Technology Hyderabad) , Matthijs A. Van Spronsen (Diamond Light Source) , Vimalnath Selvaraj (University of Cambridge) , Yalamanchili Kaliprasad (Nile Limited) , Satheesh Krishnamurthy (The Open University) , Surendra K. Martha (Indian Institute of Technology Hyderabad)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Carbon , VOL 183

State: Published (Approved)
Published: July 2022
Diamond Proposal Number(s): 27982

Abstract: Graphite is an integral part of lithium-ion batteries (LIBs). However, due to limited resources and high production cost of the highly purified (battery grade) graphite are becoming a challenge to meet the ever-increasing demands for energy storage devices. One viable approach is to recycle the spent graphite anodes from end-of-life LIBs. Importantly, recycling of spent lithium-ion batteries (LIBs) is off utmost importance to address the global challenge of electronic waste management. Herein, we present an environment friendly technique of graphite recycling from the spent LIB by water leaching, followed by atmospheric plasma jet printing. The major advantage of this method is that it does not require any binders or conductive diluents. Plasma printed recycled graphite showed significantly enhanced specific capacity of 402 mAh g−1 at 500 mA g−1 at the end of the 1000th charge-discharge cycles, in comparison to with water-washed recycled graphite (112 mAh g−1) and a 23.35 times faster diffusivity of Li+. A detailed experimental investigation revealed the plasma activation of the graphitic structure resulted in the improved reversible Li+ storage. This work provides a new perspective on the recycling strategy of graphite anodes using the in-situ plasma functionalization strategy, a significant step towards the sustainable future of LIBs.

Journal Keywords: Lithium-ion batteries; Recycling; Graphite anode; Plasma jet; Electrochemistry

Diamond Keywords: Additive Manufacturing; Batteries; Lithium-ion

Subject Areas: Materials, Energy, Environment


Instruments: B07-C-Versatile Soft X-ray beamline: Ambient Pressure XPS and NEXAFS

Added On: 20/07/2022 10:42

Discipline Tags:

Energy Storage Earth Sciences & Environment Energy Physical Chemistry Energy Materials Chemistry Materials Science

Technical Tags:

Spectroscopy X-ray Absorption Spectroscopy (XAS) X-ray Photoelectron Spectroscopy (XPS) Near Edge X-ray Absorption Fine Structures (NEXAFS)