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Regulating Pre-oxidation and Coating in Resin-Based Hard Carbon: Mechanism Insight and Sodium Storage Performance
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Gang TANG, Yanhua WANG, Danyang LI, Luhua HE
Mining and Metallurgical Engineering | 2026, 46(3) : 251 - 255
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Mining and Metallurgical Engineering | 2026, 46(3): 251-255
• MATERIALS •
Regulating Pre-oxidation and Coating in Resin-Based Hard Carbon: Mechanism Insight and Sodium Storage Performance
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Gang TANG, Yanhua WANG, Danyang LI, Luhua HE
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  • Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, Hunan, China
doi: 10.3969/j.issn.0253-6099.2026.03.038
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The effects of pre-oxidation and coating on the structure and sodium storage performance of resin-based hard carbon were investigated. The study reveals that the combined regulation of pre-oxidation and coating can effectively modify closed pores, graphite microcrystals and defect structures of hard carbon, thereby increasing available sodium ion storage and reversible deintercalation/intercalation sites. The as-synthesized hard carbon delivers a discharge capacity of 399 mAh/g at 0.1C rate, with an initial Coulombic efficiency of 87.3%, and retains 96.4% of this capacity after 50 cycles, which can satisfy the demand of sodium-ion batteries for hard carbon materials with high initial efficiency and long cycling life.

sodium-ion battery  /  anode material  /  resin  /  hard carbon  /  sodium storage  /  closed pore structure  /  pre-oxidation  /  coating
汤刚, 王艳华, 李丹杨, 何鲁华. 树脂基硬碳预氧化与包覆调控机制及储钠性能研究. 矿冶工程杂志, 2026 , 46 (3) : 251 -255 . DOI: 10.3969/j.issn.0253-6099.2026.03.038
Gang TANG, Yanhua WANG, Danyang LI, Luhua HE. Regulating Pre-oxidation and Coating in Resin-Based Hard Carbon: Mechanism Insight and Sodium Storage Performance[J]. Mining and Metallurgical Engineering, 2026 , 46 (3) : 251 -255 . DOI: 10.3969/j.issn.0253-6099.2026.03.038
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Year 2026 volume 46 Issue 3
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doi: 10.3969/j.issn.0253-6099.2026.03.038
  • Receive Date：2025-11-20
  • Online Date：2026-10-08
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  • Received：2025-11-20
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    Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, Hunan, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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