CAJ | 학술논문

以固体废弃物兰炭焦末为原料,通过硼( B)掺杂及高温处理制备出改性兰炭粉末材料。研究B掺杂量对其作为锂离子电池负极材料的影响。结果表明,B掺杂质量分数为8%时,经2300益高温处理,兰炭的电化学性能达到最佳,首次脱锂容量为361 mAh/g,在1 C电流密度下经300次循环后,容量为314 mAh/g,表现出较为优良的循环性能。
이고체폐기물란탄초말위원료,통과붕( B)참잡급고온처리제비출개성란탄분말재료。연구B참잡량대기작위리리자전지부겁재료적영향。결과표명,B참잡질량분수위8%시,경2300익고온처리,란탄적전화학성능체도최가,수차탈리용량위361 mAh/g,재1 C전류밀도하경300차순배후,용량위314 mAh/g,표현출교위우량적순배성능。
Waste semiˉcoke powder generated in semiˉcoke production and transportation was doped with 8 mass% boron by a high temperature treatment at 2 300 ℃. Results indicate that the doping overcomes the shortcomings of low coulombic efficiency, short cycle life, and there are no charge and discharge platforms due to a high content (15 mass%) of impurity in the raw materials. The first discharge capacity is 361 mAh/g at a rate of 0. 1 C and the reversible capacity is 314 mAh/g after 300 cycles at charge and discharge ratesof 1 C, showing excellent cycling performance.