The Qichacha APP shows that recently, the patent for "Solid-state battery composite electrode and preparation method and solid-state battery containing the composite electrode" applied by Xiaomi Automobile Technology Co., Ltd. was published. The Qichacha patent abstract shows that the solid-state battery composite electrode disclosed in the patent effectively shortens the transmission path of metal ions in thick electrodes, speeds up the transmission rate of metal ions between electrodes, and has high electrode loading and rate performance.