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ллÄú£¬Äú¿´ÎÄÏ×ÀïµÄ¹«Ê½£ºthe special capacitances of the ECs were evaluated in area (¦ÌF cm−2) and volume (F cm−3) units. The specific areal capacitance of EC devices, CA (¦ÌF cm−2), was calculated from EIS spectra by CA=-1/(2*¦Ð*f*Z''*s)  ,where f is frequency (Hz), Z¡± is the imaginary resistance (¦¸) and s is the area of the electrode (cm2).The specific volumetric capacitance, CV (F cm−3), was calculated by equation S2: CV =1/ (*¦Ð*f*Z'' &#119907 , where 𝑣 is the volume of the two electrodes; 𝑣 = 2d s and d is the thickness of a single electrode.  
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