Recently, the research group of Toyota North America Institute (TRINA) has developed a new lithium battery nanosulfide cathode material that uses a structure similar to that of truffles, including sulfur particles embedded in hollow carbon nanospheres and sealing flexibility Laminated (LBL) nano-film carbon conductor. Currently TRINA has published papers in the Journal of Energy and Environmental Sciences at the Royal Society of Chemistry (RSC). In the paper, the researchers noted that the new nano-sulfur cathode material (65% final sulfur loading) can operate at 2C high rates (1C corresponds to one full charge or discharge for one hour) and can perform more than 500 charge and discharge cycles, Coulomb efficiency (ie, charge-discharge efficiency) is almost 100%. Throughout the chemical reaction process, due to the stacked nano-film carbon conductor can be self-assembled, so the surface properties of nano-sulfur cathode material to form a well-organized supramolecular structure will be greatly affected. Any material (ion or hydrogen bond) that has the ability to bind and is capable of reacting with a solvent can be converted into a multi-layer structure by lamination. The above results show that, for other low-conductivity battery cathode, the future of this new nano-sulfur cathode material will be the ideal solution. Nano-sulfur cathode materials can bring theoretical capacity of up to 1672 mA / g, which is attractive for the next generation of batteries. However, in practical applications, the problems of high resistance, low load active material, and decomposition of the intermediate polysulfide in the electrolyte during charging and discharging still bring about immense challenges. These problems will lead to the decrease of the coulomb efficiency and the increase of the battery capacity loss, Self-discharge phenomenon occurred. Previously, many research groups have been exploring the use of polymer electrolytes, nano-coatings and nano-film to prevent polysulfide decomposition, thereby enhancing the performance of lithium-sulfur batteries. However, TRINA researchers have repeatedly tested and found that although polymer-based electrolytes can be used to stop polysulfide degradation, their conductivity is significantly reduced compared to conventional liquid-based electrolytes, which also makes it difficult to achieve efficient discharge rates More difficult. The cycle characteristics of sulfur cathodes improve when polymers are used in composite or nano-coatings. In addition, the polymer can provide a sulfur cathode with a flexible frame that freely regulates capacity between charge and discharge. In the meantime, the new structure adopted by TRINA's research team in lithium-ion battery nanosulfide cathode materials can also inhibit the decomposition of intermediate polysulfides and reduce the problems of carbon conductor generation.