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Letter

Nature Materials 7, 707–711 (1 September 2008) | doi:10.1038/nmat2251

Experimental visualization of lithium diffusion in LixFePO4

Shin-ichi Nishimura , Genki Kobayashi , Kenji Ohoyama , Ryoji Kanno , Masatomo Yashima & Atsuo Yamada

Chemical energy storage using batteries will become increasingly important for future environmentally friendly (|[lsquo]|green|[rsquo]|) societies. The lithium-ion battery is the most advanced energy storage system, but its application has been limited to portable electronics devices owing to cost and safety issues.