Heterostructured Bi@Bi2O3 nanoparticles bonding on reduced graphene oxide with high-rate capability and outstanding cycling stability for sodium-ion batteries

Boyu Mu, Guanwen Wang, Chunlei Chi, Ke Cao, Zhi‐Yuan Li, Bin Qi, Qiushi Miao, Dianwu Wu, Wei Tong, Zhuangjun Fan