CN112366319B - 复合纳米SnO2负极材料与中间相碳微球的制备方法 - Google Patents
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Abstract
本发明公开一种复合纳米SnO2负极材料与中间相碳微球的制备方法。制备方法采用微波辅助溶胶‑凝胶法,制备纳米SnO2的同时,引入中间相碳微球材料,再经过一系列高温处理,制得结合度良好的纳米氧化锡‑中间相碳微球复合材料。本发明相比现有的负极改性对电池循环寿命的提高有限,采用本发明的技术手段,可以有效发挥中间相碳微球和纳米氧化锡的各自优势,从而大大提升锂离子电池的循环寿命。
Description
技术领域
本发明涉及电化学领域,特别涉及一种复合纳米SnO2负极材料与中间相碳微球的制备方法。
背景技术
现有技术对碳基材料进行表面包覆改性,一般是直接使用成品材料复合,例如,采用SnO2对碳基材料进行包覆,通常是直接采用高温煅烧制备纳米 SnO2,再与中间相碳微球(MCMB)直接成品复合。这种工艺存在以下问题:
(1)、表面包覆改性只能通过对其表面修饰来改善性能,并不能改变碳材料结构,对循环的改善有限;
(2)、直接使用纳米SnO2首次放电过程中提及膨胀严重,循环期间锂离子的反复嵌入与脱出过程中一出现“粉化”和“团聚”现象,导致电化学性能迅速下降。
发明内容
针对现有技术存在的问题,本发明提供一种复合纳米SnO2负极材料与中间相碳微球的制备方法。制备方法采用微波辅助溶胶-凝胶法,制备纳米SnO2的同时,引入中间相碳微球材料,再经过一系列高温处理,制得结合度良好的纳米氧化锡-中间相碳微球复合材料。
为实现上述目的,本发明的具体技术方案如下:
一种复合纳米SnO2负极材料与中间相碳微球的制备方法,包括以下步骤:
(1)、将锡酸四丁酯、无水乙醇和乙酰丙酮均匀混合,所得溶液标记为A 溶液;
(2)、将六氟锡酸锂、无水乙醇、柠檬酸、去离子水均匀混合,所得溶液标记为B溶液;
(3)、在剧烈搅拌条件下,将B溶液缓慢加入到A溶液中,得到均匀透明的溶胶,继续搅拌1-10h,直至形成凝胶C;
(4)、将中粒径在10-16μm的中间相碳微球颗粒加入到步骤(3)所得的凝胶中,加入过程中,不断搅拌直至均匀;
(5)、步骤(4)所得产物经干燥、研磨后装入中间相碳微球坩埚,置于微波炉中,在空气气氛下升温到500-850℃,保温20-80min,再将产物机械研磨后即可。
优选地,所述步骤(1)中,锡酸四丁酯、无水乙醇和乙酰丙酮的摩尔比为5∶88∶3。
优选地,所述步骤(2)中,六氟锡酸锂、无水乙醇、柠檬酸、去离子的摩尔比为(4~5)∶64∶3∶34。
优选地,所述步骤(4)中,中间相碳微球颗粒的加入量按摩尔比 nC∶n(LiNO3)=1∶4添加。
采用本发明的技术方案,具有以下有益效果:
相比现有的负极改性对电池循环寿命的提高有限,采用本发明的技术手段,可以有效发挥中间相碳微球和纳米氧化锡的各自优势,从而大大提升锂离子电池的循环寿命。
附图说明
图1为本发明的工艺流程图。
具体实施方式
以下结合附图1和具体实施例,对本发明进一步说明。
实施例1
(1)按摩尔比记,将锡酸四丁酯、无水乙醇和乙酰丙酮按5∶88∶3均匀混合,所得溶液标记为A溶液;
(2按摩尔比记,将六氟锡酸锂、无水乙醇、柠檬酸、去离子水按4∶64∶3∶34 均匀混合,所得溶液标记为B溶液;
(3)在剧烈搅拌条件下,将B溶液缓慢加入到A溶液中,得到均匀透明的溶胶,继续搅拌10h,直至形成凝胶C;
(4)将中粒径在10-16μm的中间相碳微球颗粒按摩尔比nC∶n(LiNO3)=1∶4 加入到步骤(3)所得的凝胶中,加入过程中,不断搅拌直至均匀;
(5)步骤(4)所得产物经干燥、研磨后装入中间相碳微球坩埚,置于微波炉中,在空气气氛下升温到850℃,保温20min,再将产物机械研磨后即可。
实施例2
(1)按摩尔比记,将锡酸四丁酯、无水乙醇和乙酰丙酮按5∶88∶3均匀混合,所得溶液标记为A溶液;
(2按摩尔比记,将六氟锡酸锂、无水乙醇、柠檬酸、去离子水按4∶64∶3∶34 均匀混合,所得溶液标记为B溶液;
(3)在剧烈搅拌条件下,将B溶液缓慢加入到A溶液中,得到均匀透明的溶胶,继续搅拌5h,直至形成凝胶C;
(4)将中粒径在10-16μm的中间相碳微球按摩尔比nC∶n(LiNO3)=1∶4加入到步骤(3)所得的凝胶中,加入过程中,不断搅拌直至均匀;
(5)步骤(4)所得产物经干燥、研磨后装入中间相碳微球坩埚,置于微波炉中,在空气气氛下升温到500℃,保温80min,再将产物机械研磨后即可
实施例3:
(1)按摩尔比记,将锡酸四丁酯、无水乙醇和乙酰丙酮按5∶88∶3均匀混合,所得溶液标记为A溶液,备用;
(2按摩尔比记,将六氟锡酸锂、无水乙醇、柠檬酸、去离子水按 5∶64∶3∶34均匀混合,所得溶液标记为B溶液;
(3)在剧烈搅拌条件下,将B溶液缓慢加入到A溶液中,得到均匀透明的溶胶,继续搅拌8h,直至形成凝胶;
(4)将中粒径在10-16μm的中间相碳微球颗粒按摩尔比nC∶n(LiNO3)=1∶4 加入到步骤(3)所得的凝胶中,加入过程中,不断搅拌直至均匀;
(5)步骤(4)所得产物经干燥、研磨后装入中间相碳微球坩埚,置于微波炉中,在空气气氛下升温到800℃,保温60min,再将产物机械研磨后即可
实施例4:
(1)按摩尔比记,将锡酸四丁酯、无水乙醇和乙酰丙酮按5∶88∶3均匀混合,所得溶液标记为A溶液;
(2按摩尔比记,将六氟锡酸锂、无水乙醇、柠檬酸、去离子水按 4∶64∶3∶34均匀混合,所得溶液标记为B溶液;
(3)在剧烈搅拌条件下,将B溶液缓慢加入到A溶液中,得到均匀透明的溶胶,继续搅拌5h,直至形成凝胶C;
(4)将中粒径在10-16μm的天然中间相碳微球颗粒按摩尔比 nC∶n(LiNO3)=1∶4加入到步骤(3)所得的凝胶中,加入过程中,不断搅拌直至均匀;
(5)步骤(4)所得产物经干燥、研磨后装入中间相碳微球坩埚,置于微波炉中,在空气气氛下升温到750℃,保温50min,再将产物机械研磨后即可
比较例1:
中间相碳微球颗粒,直接作为比较例1。
比较例2:
人造石墨,直接作为比较例2。
测试方法
循环性能的测试,需要使用本发明材料制备锂离子电池,所使用的正极材料为含锂的过渡氧化物LiCO2,所使用电解液由电解质+溶剂组成,电解质是LiPF66,溶剂为有机溶剂,隔膜采用聚乙烯(PE)、聚丙烯(PP)组成的 PP-PE-PP三层复合膜,正负极集体分别采用铝箔和铜箔。聚偏氟乙烯(PVDF) 用作正极的粘结剂,羧基丁苯胶乳(SBR)则用作负极粘结剂。电池循环测试采用1C/1C电流充放,循环800次对比相对初始容量的容量保持率。
测试结果
表1
从表1所示的测试结果可以看出,采用本发明工艺制备的纳米氧化锡-中间相碳微球复合材料作为负极材料,大大提升锂离子电池的循环寿命。
以上所述仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是在本发明的发明构思下,利用本发明说明书及附图内容所作的等效结构变换,或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。
Claims (3)
1.一种复合纳米SnO2负极材料与中间相碳微球的制备方法,其特征在于,包括以下步骤:
(1)、将锡酸四丁酯、无水乙醇和乙酰丙酮均匀混合,所得溶液标记为A溶液;
(2)、将六氟锡酸锂、无水乙醇、柠檬酸、去离子水均匀混合,所得溶液标记为B溶液;
(3)、在剧烈搅拌条件下,将B溶液缓慢加入到A溶液中,得到均匀透明的溶胶,继续搅拌1-10h,直至形成凝胶C;
(4)、将中粒径在10-16μm的中间相碳微球颗粒加入到步骤(3)所得的凝胶中,加入过程中,不断搅拌直至均匀;
(5)、步骤(4)所得产物经干燥、研磨后装入中间相碳微球坩埚,置于微波炉中,在空气气氛下升温到500-850℃,保温20-80min,再将产物机械研磨后即可。
2.根据权利要求1所述的复合纳米SnO2负极材料与中间相碳微球的制备方法,其特征在于,所述步骤(1)中,锡酸四丁酯、无水乙醇和乙酰丙酮的摩尔比为5:88:3。
3.根据权利要求1所述的复合纳米SnO2负极材料与中间相碳微球的制备方法,其特征在于,所述步骤(2)中,六氟锡酸锂、无水乙醇、柠檬酸、去离子水的摩尔比为(4~5):64:3:34。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101944598A (zh) * | 2010-08-31 | 2011-01-12 | 天津巴莫科技股份有限公司 | 一种锂离子电池负极材料的制备方法 |
CN103236518A (zh) * | 2013-04-28 | 2013-08-07 | 华南师范大学 | 一种锂离子电池负极纳米材料SnO2/MCMB核壳及其制备方法与应用 |
CN104218232A (zh) * | 2014-09-16 | 2014-12-17 | 郑州大学 | 一种石墨烯修饰的二氧化锡锂离子电池负极材料的制备方法 |
CN109301204A (zh) * | 2018-09-25 | 2019-02-01 | 陕西科技大学 | 一种空心球结构硫化锡/氧化锡锂离子电池负极材料的制备方法 |
-
2020
- 2020-11-10 CN CN202011251808.9A patent/CN112366319B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101944598A (zh) * | 2010-08-31 | 2011-01-12 | 天津巴莫科技股份有限公司 | 一种锂离子电池负极材料的制备方法 |
CN103236518A (zh) * | 2013-04-28 | 2013-08-07 | 华南师范大学 | 一种锂离子电池负极纳米材料SnO2/MCMB核壳及其制备方法与应用 |
CN104218232A (zh) * | 2014-09-16 | 2014-12-17 | 郑州大学 | 一种石墨烯修饰的二氧化锡锂离子电池负极材料的制备方法 |
CN109301204A (zh) * | 2018-09-25 | 2019-02-01 | 陕西科技大学 | 一种空心球结构硫化锡/氧化锡锂离子电池负极材料的制备方法 |
Non-Patent Citations (1)
Title |
---|
SnO2 nanorods grown on MCMB as the anode material for lithium ion battery;Beibei Zhang et al.;《Journal of Alloys and Compounds》;20130704;全文 * |
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