Metal-organic　frameworks　(MOFs)　offer　versatile　building　blocks　for　high-performance　materials　across　practical　applications.　Crystallization　studies　reveal　MOF　complex　pathways　crucial　for　biological　and　synthetic　systems,　yet　understanding　remains　incomplete.　Here,　we　employ　in-situ　liquid　phase　transmission　electron　microscopy　(LPTEM)　to　scrutinize　the　growth　dynamics　of　ZIF-8　in　colloidal　environments,　aiming　to　deepen　our　comprehension　of　MOF　crystallization.　This　study　employs　in-situ　LPTEM　to　investigate　ZIF-8　nanoparticle　growth,　revealing　the　combination　of　classical　and　non-classical　nucleation　processes　in　the　same　batch　leading　a　challenge　to　control　nanoparticle　morphology　and　size,　while　heterogeneous　nucleation　is　dominant　giving　monodispersed　nanoparticle　at　the　presence　of　ZIF-8　seeds　in　mother　solution.　Additionally,　integrating　MOF-derived　carbon　materials　in　lithium-ion　batteries　(LIBs)　faces　challenges　in　achieving　high-performance,　controllable　Ndoping　and　long-term　stability.　Ultrafast　high-temperature　sintering　(UHS)　is　utilized　to　carbonize　ZIF-8,　regulating　N-doping　hard　carbon　with　Zn　single　atoms　doping.　Results　show　optimal　morphology　at　800　degrees　C　for　20　s,　yielding　higher　concentration　of　Zn-doping,　higher　N-doping　levels,　and　good　conductivity　compared　to　conventional　sintering　in　tube　furnace.　LIB　tests　demonstrate　exceptional　cycling　performance　and　stability　across　wide　temperatures.　This　UHS　strategy　for　ZIF-8　contributes　to　establishing　a　balance　between　Zn-N-doping　and　the　degree　of　graphitization,　thus　providing　an　interdisciplinary　approach　that　offers　efficient　MOF　derivative　synthesis　for　promising　wide　temperature　range　applications　of　LIBs.