<p>With the growing demand for clean energy, there is a need for lithium-ion batteries (LIBs) with higher cycle stability and longer lifespan. This work prepared a highly synthesized Ti₄O₇ powder by thermal reduction in a nitrogen atmosphere. The Ti₄O₇ powder was employed as a conductive additive in LiNi_1/3Co_1/3Mn_1/3O₂ (NCM111) cathode to prepare composite cathode to improve the performance of LIBs. This work focuses on the effects of Ti₄O₇ content on the electrochemical performance of the composite cathode of LIBs. Research has shown that the Ti₄O₇-modified composite cathodes exhibit superior reversible discharge capacity and higher capacity retention than the 0% Ti₄O₇-10%AB (pristine) cathode. In particular, the composite cathode containing 5 wt%&#xa0;Ti₄O₇ represented 122.6 mAh/g in the reversible discharge capacity at the current rate of 2C. After 200 cycles at 2C, the capacity retention rate remained at 89.8%. These results indicate that adding an appropriate amount of Ti₄O₇ helps to improve the cycling performance, lifespan, and stability of LIBs. This study provides valuable insights for developing high-performance LIBs that operate at high rates and charge quickly.</p> Graphical abstract <p></p>