Lithium　(Li)　metal　is　a　promising　anode　for　high-performance　secondary　lithium　batteries　with　high　energy　density　due　to　its　highest　theoretical　specific　capacity　and　lowest　electrochemical　potential　among　anode　materials.　However,　the　dendritic　growth　and　detrimental　reactions　with　electrolyte　during　Li　plating　raise　safety　concerns　and　lead　to　premature　failure.　Herein,　we　report　that　a　homogeneous　nanocomposite　protective　layer,　prepared　by　uniformly　dispersing　AlPO(4)nanoparticles　into　the　vinylidene　fluoride-co-hexafluoropropylene　matrix,　can　effectively　prevent　dendrite　growth　and　lead　to　superior　cycling　performance　due　to　synergistic　influence　of　homogeneous　Li　plating　and　electronic　insulation　of　polymeric　layer.　The　results　reveal　that　the　protected　Li　anode　is　able　to　sustain　repeated　Li　plating/stripping　for　＞　750　cycles　under　a　high　current　density　of　3　mA　cm(-2)and　a　renders　a　practical　specific　capacity　of　2　mAh　cm(-2).　Moreover,　full-cell　Li-ion　battery　is　constructed　by　using　LiFePO(4)and　protected　Li　as　a　cathode　and　anode,　respectively,　rendering　a　stable　capacity　after　400　charge/discharge　cycles.　The　current　work　presents　a　promising　approach　to　stabilize　Li　metal　anodes　for　next-generation　Li　secondary　batteries.