A p-Type Small-Molecule Organic Cathode Simultaneously for High-Voltage Li/Na-Based Dual-Ion Full Batteries

IF 18.9 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials Pub Date : 2024-12-20 DOI:10.1016/j.ensm.2024.103979

Meichen Guo, Wenjun Li, Wu Tang, Chenbin Tang, Bei Cao, Xuesong He, Cong Fan

引用次数: 0

Abstract

A small organic molecule namely [N,N'-bis(triphenylamine)]-dihydrophenazine (PZ2TPA) is designed as the p-type organic cathode for rechargeable batteries. PZ2TPA can undergo 4-electron and 4-anion-inserted redox mechanism, with the theoretical capacity (C_T) of 160 mAh g^-1. Subsequently, the high-voltage Li/Na-based dual-ion full batteries can be simultaneously constructed by using PZ2TPA cathode and graphite (C)/hard carbon (HC) as the anodes, respectively. Both full batteries can be simply activated by the 1st charge process after battery assembly, and show the two high voltage slopes at 3.79/3.01 V (vs. C) and 3.77/3.04 V (vs. HC), respectively. Furthermore, both full batteries can still deliver the peak discharge capacities of 161/151 mAh g^-1_PZ2TPA and stably run for 1000 cycles.

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高压锂/钠基双离子电池用p型小分子有机阴极研究

设计了一种小有机分子[N，N'-双（三苯胺）]-二氢非那嗪（PZ2TPA）作为可充电电池的p型有机阴极。PZ2TPA可经历4电子和4阴离子插入氧化还原机制，理论容量（CT）为160 mAh g-1。随后，以PZ2TPA为阴极，石墨(C)/硬碳（HC）为阳极，可以同时构建高压Li/ na基双离子充满电池。在电池组装后，两个充满的电池都可以通过第一次充电过程简单地激活，并分别显示出3.79/3.01 V （vs. C）和3.77/3.04 V （vs. HC）的两个高压斜率。此外，两种充满的电池仍然可以提供161/151 mAh g-1PZ2TPA的峰值放电容量，并稳定运行1000个循环。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Energy Storage Materials Materials Science-General Materials Science

CiteScore

33.00

自引率

5.90%

发文量

652

审稿时长

27 days

期刊介绍： Energy Storage Materials is a global interdisciplinary journal dedicated to sharing scientific and technological advancements in materials and devices for advanced energy storage and related energy conversion, such as in metal-O2 batteries. The journal features comprehensive research articles, including full papers and short communications, as well as authoritative feature articles and reviews by leading experts in the field. Energy Storage Materials covers a wide range of topics, including the synthesis, fabrication, structure, properties, performance, and technological applications of energy storage materials. Additionally, the journal explores strategies, policies, and developments in the field of energy storage materials and devices for sustainable energy. Published papers are selected based on their scientific and technological significance, their ability to provide valuable new knowledge, and their relevance to the international research community.