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A Paper Company Wants to Make a Wooden Rival to Car Batteries

Japan’s Nippon Paper is advancing technology that it claims could one day be capable of powering vehicles.

Nippon Paper's Nozawa on Using Wood to Make Car Batteries
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It’s a potential leap in technology that most scientists remain skeptical about, but which a Japanese paper producer is determined to pursue: using trees to develop a successor to lithium-ion batteries for electric cars.

Nippon Paper Industries Co. is targeting new breakthroughs in the use of cellulose nanofibers — materials produced by refining wood pulp to the size of hundredths of a micron or smaller, and currently used in products like diapers or food additives — with the aim of creating supercapacitors that could store and release energy with vastly improved performance, and less environmental impact, than existing batteries.