Analyses of international patents on DII based supercapacitors
WANG Xin, JIN Junbao, ZHENG Yurong, BAI Guangzu, WANG Yanni, WU Xinnian
Energy Storage Science and Technology . 2019, (1): 201 -208 .  DOI: 10.12028/j.issn.2095-4239.2018.0074