Organoaqueous calcium chloride electrolytes for capacitive charge storage in carbon nanotube electrodes at sub-zero-temperatures Electronic Supplementary Information

Electronic Supplementary Information Yun Gao, a,b Zhanbin Qin, Li Guan, a Xiaomian Wang, and George Z. Chen* a Department of Chemical and Environmental Engineering, and Energy and Sustainability Research Division, Faculty of Engineering, The University of Nottingham, Nottingham NG7 2RD, UK E-mail: [email protected] b Department of Chemical Engineering, North China University of Science and Technology, Tangshan, Hebei 063009, P. R. China c Department of Chemical and Environmental Engineering, and Centre for Sustainable Energy Technologies, Faculty of Science and Engineering, The University of Nottingham Ningbo China, Ningbo 315100, P. R. China