“…This is due to their many advantages, such as charge/discharge capabilities, high power densities, and long cycle life. 8,9 On the other hand, human activities, such as industrialization, mining, urbanization, and exploration, are responsible for the increase of air pollutants, such as NO x , CO, SO 2 , and volatile organic compounds (VOCs). 10,11 Among the VOCs, methanol is one of the most poisonous gases, and needs to be strictly controlled in the environment.…”