“…A family of layered transition-metal carbides or/and nitrides, called MAX phases (short for M n +1 AX n and usually, n = 1, 2, or 3), where M is an early transition metal, A is often from groups 13–16, and X is C and/or N, − have raised much attention due to their intrinsically integrated metallic and ceramic properties, which endows them with potentials for multidisciplinary applications. − In addition, recently, there have been many studies on MAB, , a layered material similar to MAX phases. Moreover, the A-site atoms usually possess superior capacities for lithium storage, and the robust MAX matrix could enable a satisfactory cyclic life. − However, the conventional synthesis strategies often result in large particles, which leads to underutilization of active sites and poor electrical contact between particles, ultimately limiting its comprehensive electrochemical performance.…”