Scholarlink

<p>Conversion-type batteries with high energy storage efficiencies are crucial to minimize the energy loss during energy storage. However, current conversion-type batteries generally show relatively low energy storage efficiencies of (59–95)% with large charge-discharge overpotentials of 200–1500 mV. Here we report a rechargeable battery with a maximum energy storage efficiency of 99.5% and a small overpotential of 9 mV, based on a S-Cl synergistic chemistry with fast reaction kinetics. We verify that the in situ formed Cl<sub>2</sub> during charging can trigger highly efficient SO<sub>2</sub>/SO<sub>2</sub>Cl<sub>2</sub> conversion with a maximum current density of 400 mA/cm<sup>2</sup>, which is one to three orders of magnitude higher than those of state-of-the-art conversion-type batteries. In addition, the high energy storage efficiencies of (93 − 97)% have been validated under a variety of harsh yet practical conditions, <i>e.g</i>., at a low temperature of − 20 °C and a high areal capacity of 13.5 mAh/cm<sup>2</sup>. We further demonstrate their potential applications by producing a 250 mAh pouch cell, an on-chip microbattery, and a wearable fiber battery, which exhibit high electrochemical properties and practicability.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Synergistic sulfur-chlorine battery chemistry towards efficient energy storage

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月23日

查看全文
  • Xiaoju Zhao,
  • Meng Liao,
  • Shitao Geng,
  • Yan Wang,
  • Shuo Wang,
  • Zhaofeng Ouyang,
  • Qiuchen Xu,
  • Bin Yuan,
  • Chengxiao Zhang,
  • Shanshan Tang,
  • Lei Ye,
  • Liang Wu,
  • Huisheng Peng,
  • Hao Sun

摘要

Conversion-type batteries with high energy storage efficiencies are crucial to minimize the energy loss during energy storage. However, current conversion-type batteries generally show relatively low energy storage efficiencies of (59–95)% with large charge-discharge overpotentials of 200–1500 mV. Here we report a rechargeable battery with a maximum energy storage efficiency of 99.5% and a small overpotential of 9 mV, based on a S-Cl synergistic chemistry with fast reaction kinetics. We verify that the in situ formed Cl2 during charging can trigger highly efficient SO2/SO2Cl2 conversion with a maximum current density of 400 mA/cm2, which is one to three orders of magnitude higher than those of state-of-the-art conversion-type batteries. In addition, the high energy storage efficiencies of (93 − 97)% have been validated under a variety of harsh yet practical conditions, e.g., at a low temperature of − 20 °C and a high areal capacity of 13.5 mAh/cm2. We further demonstrate their potential applications by producing a 250 mAh pouch cell, an on-chip microbattery, and a wearable fiber battery, which exhibit high electrochemical properties and practicability.