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[½»Á÷] ÎÊһϠGalvanodynamic methodµÄÎÊÌ⣬Çó¿ÆÆÕ ÒÑÓÐ2È˲ÎÓë

ÎÄÏ×ÖÐÌáµ½ÁË Galvanodynamic method²âÊÔ£¬»¹ÓвâÊԵļ«»¯ÇúÏß
ÎÒ¸Õ¿ªÊ¼¿´µ½Õâ¸öͼƬµÄʱºò»¹ÒÔΪÊdzä·ÅµçÇúÏßÄØ£¬µ«ÊÇÒ»¿´ºá×ø±êÊǵçÁ÷Ãܶȣ¬¾Í²»¶ÔÁË£¬ÔÚExperimentÖÐ×÷ÕßÌáµ½ÁË Galvanodynamic method was used to discharge or charge the battery from 0 to 200 mA£¬Õâ¸ö¿ÉÄܾÍÊÇÕâ¸ö¶¯µçÁ÷·½·¨µÄ²âÊÔÁ˰ɣ¬ÒÔǰû½Ó´¥¹ýÕⲿ·Ö²âÊÔÊֶΣ¬Çó¿ÆÆÕÒ»ÏÂ

¶ÔÓÚÇúÏߵķÖÎöÓм¸¾äÊÇÕâÑùµÄ£º The polarization curves for battery discharge illustrates an activation loss region followed by a pseudo-linear ohmic loss region (Fig. 4a). Evidently, the MnO2¨CNCNT composite exhibits lower ohmic loss compared to MnO2. The lower ohmic loss experienced by the MnO2¨CNCNT composite contributes to 62%
improvement in discharge current density at 0.8 V. With respect to battery charging (Fig. 4a), similar current density was observed for the MnO2¨CNCNT composite and the pure MnO2.£¬ÒòΪ²»¶®Õâ¸ö²âÊÔ·½·¨Ò²¿´²»¶®ÕâÕÅͼ£¬ËùÒÔÕâÀïÃæµÄʲô¼ÙÏßÐÔÅ·Ä·ËðÊ§ÇøÓò£¨pseudo-linear ohmic loss regionÒ²²»ÖªµÀ·­ÒëµÄ¶Ô²»¶Ô£©ºÍ»îÐÔËðÊ§ÇøÓò£¨activation loss region£©¶¼¿´²»¶®£¬ËùÒÔÉÏÀ´Çë½ÌÒ»ÏÂ

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