Cobalt tetrapyridinoporphyrazine nanoparticulates anchored on carbon nanotubes for long-voltage Li/SOCl2 batteries
Cobalt tetrapyridinoporphyrazine nanoparticulates anchored on carbon nanotubes for long-voltage Li/SOCl2 batteries
复制标题
用于长电压 Li/SOCl2 电池的碳纳米管上固定的四吡啶基四氮杂卟啉钴纳米颗粒
DOI：
10.1016/j.electacta.2018.10.178
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发表时间：
2019-02-01
影响因子：
6.6
通讯作者：
Zhu, Jianfeng
中科院分区：
文献类型：
--
作者：
Li, Kang;Xu, Zhanwei;Zhu, Jianfeng
商用锂/亚硫酰氯（Li/SOCl 2）电池无法满足大多数仪器所需的3.15 V平台。将5-15 nm厚的四吡啶基卟啉钴（CoTAP）组装在酸官能化的多壁碳纳米管（CoTAP/MWCNTs）上，并将其固定在原位固相合成法制备的多壁碳纳米管上。发现由CoTAP/MWCNTs催化的电压大于3.15 V的Li/SOCl 2电池的放电时间比没有催化剂的电池长11 min，比单独由CoTAP催化的电池长4 min。发现由CoTAP/MWCNTs催化的电压大于3.15 V的Li/SOCl 2电池的能量比具有AF-MWCNTs的电池高11.44倍，比由本体CoTAP催化的电池高6.17倍。这是由于更多的CoTAP超细纳米颗粒锚定在AF-MWCNT上的事实。这些纳米颗粒为SOCl 2的催化反应提供了更多的活性位点。该组件被示出具有对Li离子的吸附-配位效应，并且延迟氯化锂钝化膜的沉积，从而提高电池电压平台。(C)2018由Elsevier Ltd.出版
Commercial lithium/thionyl chloride (Li/SOCl2) batteries cannot meet the 3.15 V platform required for most instruments. A hovenia acerba-like assembly constructed with cobalt tetrapyridinoporphyrazine of thickness of 5-15 nm is anchored on acid-functionalized multi-walled carbon nanotubes (CoTAP/MWCNTs), which were prepared using an in situ solid synthesis process. The discharge time of Li/SOCl2 batteries with a voltage greater than 3.15 V catalyzed by CoTAP/MWCNTs is found to be 11 min longer than batteries without catalysts and 4 min longer than those catalyzed by CoTAP alone. The energy of Li/SOCl2 batteries with a voltage greater than 3.15 V catalyzed by CoTAP/MWCNTs is discovered to be 11.44-times higher than batteries with AF-MWCNTs and 6.17-times higher than those catalyzed by bulk CoTAP. This is due to the fact that more CoTAP ultrafine nanoparticulates are anchored on the AF-MWCNTs. These nanoparticulates provide more active sites for the catalytic reaction of SOCl2. The assemblies are shown to have an adsorption-coordination effect on Li ions and to delay the deposition of lithium chloride passive films enhancing battery voltage platforms. (C) 2018 Published by Elsevier Ltd.