Sustainable Solid-State Lithium-ion Batteries

Introduction

• Present lithium-ion batteries are mostly based on the use of LCO/NCM/NCA as active cathode material and graphite as anode.
• Present electrolytes are liquid (lithium salt in organic solvent mixture).
• Use of halogen compounds and interactions of electrolyte with electrode materials have arised environmental and safety concern from the battery use and recycling viewpoint.

Aims

• Development of novel concept of sustainable solid-state lithium-ion battery
• Development and optimization of the cathode and anode materials
• Development and improvement of inorganic electrolytes
• Development bio-based ionic-liquid composite electrolytes and electrolyte additives
• New methods for electrode printing and cell assembly

Project implementation

• UOulu/Suschem: Preparation of active electrode materials and cell assembling
• UOulu/FPE: Preparation of inorganic electrolytes
• UOulu/Optoelectronics: Printed electrolytes
• LTU: IL-based composite electrolytes and electrolyte additives
• Co-in cell assembling and battery testing

Conclusions

• Research aims to assembly a battery prototype with NCM cathode, graphite anode and inorganic/organic solid electrolyte.
• Electrodes and electrolyte are prepared by printing.

Project poster

SolBat - Sustainable Solid-State Lithium-ion Batteries

News and events

• SolBat-webinar is on 23.5.2022. Webinar covers topics such as sustainable batteries, active electrode materials and electrolytes. Program details and registration here.