Abstract Glycine is pretreated and then carbonized to obtain a nitrogen-rich porous carbon materials (N-HPC materials). The N-HPC materials, with rich porous structure, can efficiently host tin oxide. The abundant nitrogen content (18.32 at％) in the N-HPC materials can shorten the diffusion distance of lithium, provide a large number of lithium ion storage sites, and enhance the conductivity. More importantly, the N-HPC materials, with high specific surface area (752 m2/g), can load tin oxide up to 1.83 mg/cm2. Further electrochemical testing, the SnO2/N-HPC battery has shown high specific capacity (1774.45 mA h·g-1 of 100 mA·g-1), excellent cycle performance (1492.92 mA h·g-1 after 100 cycles), excellent coulombic efficiency(99.78%) and low internal resistance.

中文翻译：

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富氮多孔碳配置超稳定氧化锡阳极

摘要 甘氨酸经预处理后碳化得到富氮多孔碳材料（N-HPC材料）。N-HPC 材料具有丰富的多孔结构，可以有效地承载氧化锡。N-HPC材料中丰富的氮含量（18.32at％）可以缩短锂的扩散距离，提供大量的锂离子存储位点，增强导电性。更重要的是，具有高比表面积 (752 m2/g) 的 N-HPC 材料可以负载高达 1.83 mg/cm2 的氧化锡。进一步电化学测试，SnO2/N-HPC电池表现出高比容量（1774.45 mA h·g-1 of 100 mA·g-1），优异的循环性能（100次循环后1492.92 mA h·g-1），优异的库仑效率（99.78%）和低内阻。