Energy density comparable with Li-ion batteries from aqueous supercapatteries of PANI/V2O5/SnO2 nanocomposite and its green electrolytes

Next Materials Pub Date : 2025-03-28 DOI:10.1016/j.nxmate.2025.100622

Aranganathan Viswanathan, Theertha Premalatha Ramesh, Megha Naik, Adka Nityananda Shetty

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引用次数: 0

Abstract

The PANI53.85 %: V₂O₅34.62 %: SnO₂11.53 % (PVS) ternary nanocomposite synthesized by insitu synthesis as supercapattery electrode material has exhibited energy density (E) equivalent to that of Li-ion batteries as the PVS furnishes an impressive E of 114.13 W h kg¹ with a high power density (P) of 2.400 kW kg¹ at 2 A g¹ in real 2 EL-supercapattery cell set up with low potential window (1.2 V) provided by 1 M H₂SO₄. The energy storage performance resulted by PVS is, a specific capacity (Q) of 684.8 C g¹, at 2 A g¹. The PVS is robust to withstand its energy storage characters up to 13600 cycles at 0.4 V s¹. The Li-ion supercapattery device of PVS made with a green electrolyte exhibited a Q of 672.0 C g¹, E of 112.0 W h kg¹ and P of 1.200 kW kg¹ at 1 A g¹_.

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PANI53.85 %：V2O534.62 %：通过原位合成法合成的三元纳米复合材料（PVS）作为超级电池电极材料，显示出与锂离子电池相当的能量密度（E），因为在由 1 M H2SO4 提供低电位窗口（1.2 V）的实际 2 EL 超级电池中，PVS 在 2 A g1 的条件下提供了令人印象深刻的 114.13 W h kg1 的能量密度（E）和 2.400 kW kg1 的高功率密度（P）。PVS 的储能性能为：在 2 A g1 时，比容量 (Q) 为 684.8 C g1。在 0.4 V s1 的条件下，PVS 的储能特性可承受高达 13600 次循环。使用绿色电解质制造的 PVS 锂离子超级电池装置在 1 A g1 时的 Q 值为 672.0 C g1，E 值为 112.0 W h kg1，P 值为 1.200 kW kg1。

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