[24p-E205-1~18] 9.4 Thermoelectric conversion

[24p-E205-14] Interrelation between discharge capacity and weight ratio of cathode active material in tertiary battery

〇Takayuki Shibata¹, Hiroki Iwaizumi², Kota Nakamura³, Shu Nozaki³, Hitoshi Ohnuki¹, Yutaka Moritomo² (1.Tokyo Univ. of Marine Sci. & Tech., 2.Univ. of Tsukuba, 3.NIT, Gunma College)

Keywords:thermal energy harvest, tertiary battery, discharge capacity

We are proposing a “tertiary batteries” that are self-charged due to temperature change of the outside as one of the energy harvesting technologies. The discharge capacity is expressed as ΔT (α⁺ -α^- )/[β⁺ /r_p+β^- /(1-r_p)], whose β and r_p are the charge coefficient of the redox potential and the ratio of the cathode active material to the total active material, respectively. In this study, we evaluated the interrelation between the discharge capacity of the tertiary battery and the weight ratio of the cathode active material. We found that the discharge capacity can be maximized by optimizing the weight ratio of the cathode active material.