Si　has　been　considered　as　one　of　the　most　attractive　anode　materials　for　Li-ion　batteries　(LIBs)　because　of　its　high　gravimetric　and　volumetric　capacity.　Importantly,　it　is　also　abundant,　cheap,　and　environmentally　benign.　In　this　review,　we　summarized　the　recent　progress　in　developments　of　Si　anode　materials.　First,　the　electrochemical　reaction　and　failure　are　outlined,　and　then,　we　summarized　various　methods　for　improving　the　battery　performance,　including　those　of　nanostructuring,　alloying,　forming　hierarchic　structures,　and　using　suitable　binders.　We　hope　that　this　review　can　be　of　benefit　to　more　intensive　investigation　of　Si-based　anode　materials.