电解质
功率密度
离子
材料科学
能量密度
聚合物
乳酸
开路电压
电流密度
光电子学
功率(物理)
水溶液
电压
化学工程
分析化学(期刊)
作者
Sanoar Molla,Farha Khatun,Pradip Thakur
标识
DOI:10.1007/s10854-021-07385-1
摘要
A very simple, low-cost and bio-compatible photo-induced K-ion-based power cell has been developed using an aqueous electrolyte solution of PVA-WO3-ZnO-K2HPO4 and poly(lactic acid) film. After investigation of the charging and discharging phenomenon the maximum open circuit voltage is obtained $$\sim$$ ∼ 1 V under light intensity ~ 110 mW/cm2. Then the device is discharged with a constant discharge current density ~ 0.5 mA/cm2. The sturdiness of K-ion photo-power cell is also verified by observing the charging-discharging data repeatedly for 200 cycles. It shows $$\sim 16$$ ∼ 16 F/m2 storage capacity with energy density and power density $$\sim 2.22$$ ∼ 2.22 mWh/m2 and $$\sim$$ ∼ 5 W/m2, respectively. A commercially available LED also driven by our fabricated power cell for showing its practical application possibilities.
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