During　charge　and　discharge　of　the　lithium-ion　batteries,　deformation　in　the　graphite-based　electrode　can　induce　high　local　strains　and　severe　mechanical　degradation.　However,　little　quantitative　method　are　available　to　help　understand　the　mechanisms　of　deformation　evolution　at　the　microscopic　scales.　This　work　reports　a　combined　method　via　in-situ　scanning　electron　microscopy　and　digital　image　correlation　technology　to　characterize　the　two-dimensional　displacement　and　strain　fields　of　the　electrode　throughout　operation.　It　is　found　that　50%　irreversible　swelling　in　the　initial　cycle　and　reversible　anisotropic　deformation　in　the　following　cycles.　The　average　strain　in　the　vertical　direction　is　4.94%,　which　is　about　18　times　higher　than　that　in　the　horizontal　direction　of　electrode.　This　new　combined　method　based　on　in-situ　scanning　electron　microscopy　and　digital　image　correlation　can　be　used　to　quantify　the　evolution　of　the　displacement　and　stain　fields　in　the　electrode.　(C)　2020　Elsevier　Ltd.　All　rights　reserved.