Application and research of current collector for lithium-sulfur battery

With the increasing demand for high-performance batteries, lithium-sulfur battery has become a candidate for a new generation of high-performance batteries because of its high theoretical capacity (1675 mAh g −1 ) and energy density (2600 Wh kg −1 ). However, due to the rapid decline of capacity and poor cycle and rate performance, the battery is far from ideal in practical commercial application. In recent years, remarkable results have been achieved in alleviating these problems through the research and development of battery devices, including cathode, anode, binder, diaphragm, electrolyte, and current collector. Judging from the articles published in recent years, there are many researches on current collector of lithium-sulfur battery, but there are few reviews. Therefore, in this paper, the latest progress of current collector in lithium-sulfur battery is systematically reviewed, including basic requirements of current collector for lithium-sulfur battery, carbon-based current collector, metal-based current collector, compound current collector. Finally, the future prospect of current collector in lithium-sulfur battery is discussed.