Cellulose nanofibrils (cellulosenanofibril,CNF) generated from wood pulp is known as the latest wonder material, which is a natural, renewable and cheap carbon nanotube. A team of scientists from the Royal Institute of Technology (KTH) in Sweden and Stanford University in the United States used this material to make a soft battery, which is more resistant to impact and impact than traditional hard batteries, and can resist high-strength pressure. The science team used CNF to create a lightweight porous aerogel-like substance, which KTH scientists MaxHamedi as "similar to a foam mattress,
Cellulose nanofibrils (cellulose nanofibril, CNF) generated from wood pulp is known as the latest wonder material, which is a natural, renewable and cheap carbon nanotube. A team of scientists from the Royal Institute of Technology (KTH) in Sweden and Stanford University in the United States used this material to make a soft battery, which is more resistant to impact and impact than traditional hard batteries, and can resist high-strength pressure.
The science team used CNF to create a lightweight porous aerogel-like substance, which KTH scientist Max Hamedi says is "similar to a foam mattress, but stronger, lighter and more porous, making it difficult to break it by touching it". The material is internally and externally treated with a conductive ink to enable it to retain a charge. The three-dimensional structure of the material means that it can store more charge per unit volume than a battery that uses traditional two-dimensional materials.
CNF is a kind of ultra-fine fiber made by decomposing the raw material of paper-plant fiber (pulp). The diameter of one cellulose nanofiber is only 3-4nm(1nm is 1/1 billion m), which is about 1/20000 of hair. Although the pulp itself is not hard, in fact, the CNF roots that make up the pulp are strong. When these CNFs are polymerized together, a strong material can be made. Compared with steel, the weight of this material is only 1/5, but its strength is more than 5 times. The strength of electronic machinery and automobile parts can be improved, and weight reduction can be realized.
(Reprinted from China Power Network)
