1. Background and definitions

1.1 Context

Lithium-ion electrochemical storage batteries, more commonly known as lithium-ion batteries, dominate the rechargeable battery market. Used in a wide range of applications such as electronic devices, transportation and renewable energy storage, they offer high energy density, long life and fast charging. However, research and development continues to improve their performance, durability, safety and recycling. In addition, there is growing interest in all-solid lithium-ion batteries, which could represent a technological breakthrough.