“…Nanogenerator (NG) is a new type of distributed energy 1,2,3,4 . According to the principle of energy conversion, nanogenerator can be divided into various categories, including piezoelectric nanogenerators (PENG) 5,6,7,8,9 , triboelectric nanogenerators (TENG) 10,11,12,13,14,15 , and pyroelectric nanogenerators (PyENG) 16,17,18,19 .…”