21:I[432972,["/_next/static/chunks/bb923814e1f4d2e9.js","/_next/static/chunks/dd3ee9f5b7716ca6.js","/_next/static/chunks/4204a0ae82542ca8.js","/_next/static/chunks/1270dead247da766.js","/_next/static/chunks/6e1aa89a642f40be.js","/_next/static/chunks/2d7aa753e81324a8.js","/_next/static/chunks/8ffd0b71567920d8.js","/_next/static/chunks/67ea6dfd21f16c5f.js","/_next/static/chunks/24eb4379f68013fd.js","/_next/static/chunks/b8cd775ffdf935bd.js","/_next/static/chunks/983103cd9eb7b428.js","/_next/static/chunks/263f2cdcb9aa2341.js","/_next/static/chunks/294b9525248c8e5f.js"],"default"] 22:T4c5,Manganese monoxide (MnO) has drawn considerable attention as anode candidate for lithium-ion batteries (LIBs) due to its high theoretical capacity of 755.6 mAh g^-1 (over twice as much as graphite) and relatively low voltage hysteresis. However, some challenging issues such as poor cyclic performance and inferior rate capability caused by the limited reaction kinetics, severe particle agglomeration of MnO, and large volume expansions during cycling still hampered its commercial implementation. Herein, we developed a rational design, in which MnO nanoparticles are sandwiched within 3D graphene-based N-doped carbon (NC) networks, which is denoted as NC/MnO/rGO. When investigated as anode for LIBs, the well-designed NC/MnO/rGO nanohybrid demonstrates high reversible capacity (1360 mAh g^-1 at 0.2 A g^-1 over 150 cycles), excellent rate capability, and good cyclability (648 mAh g^-1 at 2 A g^-1 without fading over 600 cycles). In addition, the mechanism of electrochemical reaction for the NC/MnO/rGO anode is further investigated by conducting cyclic voltammetry under different cutoff voltage ranges to explain the capacity increasing phenomenon upon cycling.23:T438,Abstract Despite its high theoretical capacity, the practical application of MnO 2 anodes for lithium‐ion batteries is still hindered by poor rate capability, owing to its low electronic conductivity and large volume variation during Li + insertion/extraction. Herein, these tough issues are tackled by embedding MnO 2 ultrafine nanoparticles within polydopamine‐modified reduced graphene oxide. This smart design skillfully utilizes the reduction and self‐polymerization properties of dopamine to reduce graphene oxide while MnO 2 ultrafine nanoparticles are embedded in the polydopamine and form a stable interface. The polydopamine, acting as an elastomer, can cushion the stress associated with the expansion of MnO 2 ultrafine nanoparticles, and the reduced graphene oxide, as the highly conductive matrix, can greatly improve the rate performance. The resultant composites exhibit a high reversible capacity, excellent cycling stability, and good rate performance, owing to the synergistic effects among conductive graphene, elastic polydopamine, and ultrafine MnO 2 .

#	Concept	H-Index	Publications	Citations
1	Engineering	4	4	102
2	Materials Science	4	4	102
3	Chemical Engineering	2	2	69
4	Chemistry	1	1	10
5	Electrical Engineering	1	1	16

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