广东凯金申请煤基硬炭负极材料及其制备方法和钠离子电池专利，制备的煤基硬炭负极材料用作钠离子电池负极材料时展现出较高的比容量和首次库仑效率
金融界
01/15/2025
Read count:4563
金融界 2025 年 1 月 14 日消息，国家知识产权局信息显示，广东凯金新能源科技股份有限公司申请一项名为“煤基硬炭负极材料及其制备方法和钠离子电池”的专利，公开号 CN 119284875 A，申请日期为 2024 年 10 月。
专利摘要显示，本发明涉及电池材料制备技术领域，提供一种煤基硬炭负极材料及其制备方法和钠离子电池。煤基硬炭负极材料的制备方法包括步骤：(I)将煤粉、碱和水混合均匀并烘干得混合料，煤粉、碱和水的质量比为 1:0.01～0.8:1～10；(II)将混合料于第一惰性气氛中进行低温炭化活化得第一前驱体，低温炭化活化的温度为 450℃～1000℃；(III)将第一前驱体进行酸洗、水洗并烘干得第二前驱体(IV)将第二前驱体于第二惰性气氛中进行炭化。本发明制备的煤基硬炭负极材料具有较低的灰分，合适的闭孔结构，用作钠离子电池负极材料时展现出较高的比容量和首次库仑效率。
天眼查资料显示，广东凯金新能源科技股份有限公司，成立于2012年，位于东莞市，是一家以从事非金属矿物制品业为主的企业。企业注册资本36906.9246万人民币，实缴资本36693.8866万人民币。通过天眼查大数据分析，广东凯金新能源科技股份有限公司共对外投资了13家企业，参与招投标项目57次，知识产权方面有商标信息4条，专利信息330条，此外企业还拥有行政许可95个。
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