Review on interfacial compatibility of solid-state lithium batteries

Solid-state lithium batteries (SSLBs) are one of the most promising next-generation energy storage devices. Firstly, with the purpose of improving the stability of the passivation film on the electrode surface, this paper focuses on the effective methods to improve the overall performance of batteries. Secondly, the compatibility between different electrolytes and electrodes is analyzed, aiming to select an electrolyte suitable for promoting ion flow while improving the permeability of electrolytes and electrodes as well as the SEI film by inhibiting lithium dendrites. The basic content of this paper is shown in Fig. 1, in which the interfacial compatibility of SSLBs is determined by positive and negative electrodes, electrolyte, and SEI film, like a hamburger threaded on a bamboo stick. This paper also reviews major methods currently used to prepare SEI films. It can be concluded that Li dendrites are one of the most significant factors affecting the interfacial compatibility of SSLBs. To achieve good interfacial compatibility of SSLBs, it is necessary to increasingly serious lithium dendrites and to propose as many use schemes as possible.