With　the　growing　price　of　lithium　material　and　associated　safety　concerns,　there　is　an　urgent　need　for　developing　new　efficient,　cost-effective　battery　systems　as　a　successor　for　lithium　ion　batteries.　Metal-air　batteries　have　drawn　huge　attention　and　interest　as　energy　storage　devices　due　to　their　high　theoretical　energy　density　when　Al,　Zn,　Ni,　and　Fe　are　used.　In　particular,　Al-air　batteries　have　the　potential　to　become　a　promising　primary　battery　system　with　their　relatively　low　prices　and　significantly　high　energy　density.　In　this　paper,　the　authors　report　a　printed　Al　anode　for　Al-air　battery　combined　with　a　laser　sintering　method.　The　anode　was　fabricated　by　Al　nanoparticle　ink　using　squeezing　printing.　Furthermore,　a　laser　sintering　method　was　applied　to　remove　the　organic　solvent　in　the　slurry　and　increase　the　conductivity　of　the　printed　anode.　By　application　of　infrared　laser　sintering,　the　authors　significantly　improved　electrical　conductivity　of　Al　nanoparticles　and　electrochemical　performance　of　Al-air　cells.　A　Pt/C　coated　hydrophobicity　carbon　paper　was　used　for　the　air　cathode　to　provide　a　good　electrical　conductivity,　an　oxygen　flow　ability,　and　the　water　vapor　sealing.　Gel-style　KOH　was　introduced　as　the　electrolyte,　and　waterways　were　also　utilized　in　the　chemical　reaction.　The　authors　show　a　full　battery　cell　with　a　printed　Al　anode　on　flexible　substrates.　This　microbattery　can　provide　a　227　mWh/g　energy　density　and　a　239　mAh/g　capacity　at　an　operation　voltage　of　0.95　V.　(C)　2018　Laser　Institute　of　America.