Abstract Brittle fracture is one of the most severe problems in carbon materials, which limits their applications in energy storage and conversion devices. Three dimensional (3D) porous carbon materials with honeycomb structure are extracted from the bio-waste, peeled pomelo material (PPM). The tensile test shows that both the ultimate tensile strength and elongation increases with increasing sintering temperature. Pronounced enhancement in the mechanical stability is revealed from the prolonged yield platform (maximum elongation, 9%), which is further rationalized in terms of the crack deflection mechanism identified from the corresponding fracture morphology. The enhancing mechanism can be utilized to design carbon materials with enhanced mechanical stability, and further improve the cycle life of carbon material applied in battery.

中文翻译：

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源自裂纹偏转的仿生三维碳材料的延长产量平台

摘要 脆性断裂是碳材料中最严重的问题之一，限制了其在储能和转换装置中的应用。具有蜂窝结构的三维 (3D) 多孔碳材料是从生物废物、去皮柚子材料 (PPM) 中提取的。拉伸试验表明，极限拉伸强度和伸长率都随着烧结温度的升高而增加。从延长的屈服平台（最大伸长率，9%）中可以看出机械稳定性的显着增强，这在从相应的断裂形态中确定的裂纹偏转机制方面进一步合理化。该增强机制可用于设计具有增强机械稳定性的碳材料，进一步提高应用于电池的碳材料的循环寿命。