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[資源]
Nature communications 新文章 A reversible long-life lithium–air battery
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最新nature comnunucations的Li-air電池,通過改變電解質(zhì)和陰極材料,有效提高穩(wěn)定性和可逆能力。 非常有指導(dǎo)意義。 摘要: Electrolyte degradation, Li dendrite formation and parasitic reactions with H2O and CO2 are all directly correlated to reversibility and cycleability of Li–air batteries when operated in ambient air. Here we replace easily decomposable liquid electrolytes with a solid Li-ion conductor, which acts as both a catholyte and a Li protector. Meanwhile, the conventional solid air cathodes are replaced with a gel cathode, which contacts directly with the solid catholyte to form a closed and sustainable gel/solid interface. The proposed Li–air cell has sustained repeated cycling in ambient air for 100 cycles (B78 days), with discharge capacity of 2,000mAhg1. The recharging is based largely on the reversible reactions of Li2CO3 product, originating from the initial discharge product of Li2O2 instead of electrolyte degradation. Our results demonstrate that a reversible long-life Li–air battery is attainable by coordinated approaches towards the focal issues of electrolytes and Li metal. 文章見附件 |
鋰離子電池研究 | 鋰電資源共享 | 先進(jìn)材料 | 萬卷閣之搜神記 |
文獻(xiàn)推薦 | 新能源新材料 | 電化學(xué)電源、電源管理 | 科技 |
Li Battery | 鋰電前沿企業(yè) | 微米 納米 |
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