A team of Swedish and American researchers announced that they have created elastic high-capacity batteries from wood pulp. Reportedly, the scientists used the nanocellulose broken down from the tree fibers to create foam-like batteries.
During the research, scientists used the nanocellulose to compose a foam-like and elastic battery material. The material could withstand extreme stress and shock.
The lead researcher, Max Hamedi, discussed different products that can be made out of the cellulose derived from trees. The Harvard University researcher also shared how the aerogel material derived from trees can be used to create 3D structures.
"There are limits to how thin a battery can be, but that becomes less relevant in 3D,” said Hamedi, in a statement. "We are no longer restricted to two dimensions. We can build in three dimensions, enabling us to fit more electronics in a smaller space."
According to Hamedi, more power can be stored in much less space if 3D structures are used. Hamedi claimed a porous 3D structure leaves room for design flexibility.
To create the 3D porous and high capacity battery, the research team first broke down the tree fibers into several thin strands before freeze-drying the dissolved nanocellulose. The molecules of the resultant material were then stabilized to prevent them from collapsing.
"The result is a material that is both strong, light and soft. The material resembles foam in a mattress, though it is a little harder, lighter and more porous. You can touch it without it breaking,” explain Hamedi. The researchers say the aerogel batteries can be utilized in clothing and car bodies.