Battery performance, safety and lifetime depend on a deep understanding of materials, electrodes, cells and packs throughout the battery value chain. This ebook explores how battery material characterization and testing, including Raman spectroscopy, ICP-OES, GD-OES, XRF, particle characterization and electrochemical testing, help control impurities, particle properties and material structure, investigate ageing mechanisms, and optimize battery performance. Discover how HORIBA battery solutions, from raw materials and electrode development to cell and pack testing and recycling, support the development of safer, longer-lasting and higher-performance batteries.