Fig. 7From: Preparation of PPy-Coated MnO2 Hybrid Micromaterials and Their Improved Cyclic Performance as Anode for Lithium-Ion Batteries a Rate capability, b rate performance, and c, d charge-discharge curves of the MnO2@PPy samples. (a, b) Urchin-like MnO2 sample and 30 μL PPy-coated sample. (c, d) Caddice-clew-like MnO2 sample and 50 μL PPy-coated sampleBack to article page