锂电池回收再生石墨增强水泥性能研究

doi:10.11962/1006-4990.2019-0627

摘要/Abstract

摘要：

废弃锂离子电池的负极活性材料主要为石墨,现阶段对于废弃锂离子电池中的石墨主要采用填埋等方法进行处理,造成了资源的浪费和环境的污染。现有的研究表明,废弃锂离子电池中的石墨经高温热解及酸浸处理后可以得到纯净的再生石墨,采用再生石墨增强水泥基复合材料的力学性能和电学性能。结果表明：再生石墨的引入可以增强材料的抗压性能和抗折性能,最大增幅分别达到了57.3%和84.4%。此外,再生石墨的加入有效降低了材料的电阻率,减少了极化时间,当再生石墨的掺加量为3%时,养护28 d后材料的电阻率仅为249 Ω·cm。该复合材料还具有典型的压敏特性。所制备的复合材料有望用于混凝土材料结构的实时动态监测。此外,对于废弃锂离子电池的全组分回收利用及功能水泥材料的研发具有重要意义。

关键词: 再生石墨, 水泥基复合材料, 废弃锂离子电池

Abstract:

The negative electrode active material of decommissioned lithium-ion batteries is mainly graphite.At present,the treatment methods for graphite in decommissioned lithium-ion batteries are mainly landfills,and it causes resources waste and environmental pollution.Existing research shows that graphite in decommissioned lithium-ion batteries can be purified and regenerated by methods such as high temperature pyrolysis and acid leaching.Using the recycled graphite to modify cement-based composite materials,the mechanical and electrical properties could be improved.Results showed that introduc-tion of recycled graphite can enhance the compressive and flexural properties of the material,and the maximum increase was 57.3% and 84.4% respectively.In addition,the introduction of recycled graphite effectively reduced the resistivity and polarization time of the material.When the additive amount of recycled graphite was 3%,the resistivity of the material after curing for 28 d was only 249 Ω·cm.The composite material also had typical pressure-sensitive characteristics.The composite material prepared in this study are expected to be used for real-time dynamic monitoring of concrete structures.In addition,it is of great significance for the recycling of all components of waste lithium-ion batteries and the development of functional cement materials.

Key words: recycled graphite, cement based composite, decommissioned lithium-ion batteries

中图分类号:

TQ127.1

周琼,杜少林,谢英豪. 锂电池回收再生石墨增强水泥性能研究[J]. 无机盐工业, 2020, 52(11): 64-68.

Zhou Qiong,Du Shaolin,Xie Yinghao. Study on properties of lithium battery recycled graphite reinforced cement[J]. Inorganic Chemicals Industry, 2020, 52(11): 64-68.

图/表 9

图1

表1

表2

图2

图3

图4

图5

图6

图7

参考文献 24

[1]	Madeline Shuhua Goh, Martin Pumera. Graphene-based electroche-mical sensor for detection of 2,4,6-trinitrotoluene (TNT) in sea-water:The comparison of single-,few-,and multilayer graphene nanoribbons and graphite microparticles[J]. Analytical & Bioanaly-tical Chemistry, 2011,399(1):127-131.
[2]	Han Baoguo, Sun Shengwei, Ding Siqi, et al. Review of nanocarbon-engineered multifunctional cementitious composites[J]. Composites Part A:Applied Science and Manufacturing, 2015,70:69-81. doi: 10.1016/j.compositesa.2014.12.002
[3]	卢珍, 吴献, 杨昆. 炭黑碳纤维复相导电混凝土的导电性能研究[J].混凝土, 2014(11):81-83,86.
[4]	Sun Guoxing, Liang Rui, Lu Zeyu, et al. Mechanism of cement/car-bon nanotube composites with enhanced mechanical properties ac-hieved by interfacial strengthening[J]. Construction & Building Ma-terials, 2016,115(15):87-92.
[5]	马颖, 安博星, 王丹, 等. 石墨烯/水泥复合材料的制备及电学、压敏性能研究[J].混凝土, 2015(9):72-76.
[6]	Tong Teng, Fan Zhou, Liu Qiang, et al. Investigation of the effects of graphene and graphene oxide nanoplatelets on the micro-and ma-cro-properties of Cementitions materials[J]. Construction and Build-ing Materials, 2016,106:102-114.
[7]	吕生华, 孙婷, 刘晶晶, 等. 氧化石墨烯纳米片层对水泥基复合材料的增韧效果及作用机制[J]. 复合材料学报, 2014,31(3):644-652.
[8]	Dunne N, Ormsby R, Mitchell C A. Carbon nanotubes in acrylic bone cement[M] ∥Iulian Antoniac.Biologically Responsive Biomaterials for Tissue Engineering.New York:Springer, 2013: 173-199.
[9]	Lv Shenghua, Liu Jingjing, Sun Ting, et al. Effect of GO nanosheets on shapes of cement hydration crystals and their formation proce-ss[J]. Constr.Build.Mater., 2014,64:231-239.
[10]	王春阳. 碳纤维在水泥基混凝土中的分散性研究[J]. 武汉理工大学学报, 2005,27(11):39-42.
[11]	孙明清, 张晖, 李卓球, 等. CFRC机敏混凝土中碳纤维的分散性研究[J].混凝土与水泥制品, 2004(5):38-41.
[12]	Han Baoguo, Zhang Liqing, Zhang Chenyu, et al. Reinforcement effect and mechanism of carbon fibers to mechanical and electric-ally conductive properties of cement-based materials[J]. Construc-tion & Building Materials, 2016,125:479-489.
[13]	Carmona Jesús, Climent Miguel-ángel, Antón Carlos, et al.Shape effect of electrochemical chloride extraction in structural reinfor-ced concrete elements using a new cement-based anodic system[J]. Materials, 2015,8:2901-2917. doi: 10.3390/ma8062901
[14]	Li Xueguang, Wei Wei, Qin Hao, et al. Co-effects of graphene oxide sheets and single wall carbon nanotubes on mechanical properties of cement[J]. Journal of Physics & Chemistry of Solids, 2015,85:39-43.
[15]	Wang Min, Yao Hao, Wang Rumin, et al. Chemically functionalized graphene oxide as the additive for cement-matrix composite with enhanced fluidity and toughness[J]. Constr.Build.Mater., 2017,150:150-156.
[16]	Gong Kai, Pan Zhu, Korayem A H, et al. Reinforcing effects of grap-hene oxide on Portland cement paste[J]. J.Mater.Civil Eng., 2015,27(2):A4014010.
[17]	Lu Zeyu, Li Xiangyu, Asad Hanif, et al. Early-age interaction me-chanism between the graphene oxide and cement hydrates[J]. Constr.Build.Mater., 2017,152:232-239.
[18]	Sun Xiuxuan, Wu Qinglin, Zhang Jinlong, et al. Rheology,curing temperature and mechanical performance of oil well cement:Com-bined effect of cellulose nanofibers and graphene nano-platele-ts[J]. Materials & Design, 2017,114:92-101.
[19]	Ra D I, Han K S. Used lithium ion rechargeable battery recycling using Etoile-Rebatt technology[J]. Journal of Power Sources, 2006,163(1):284-288. doi: 10.1016/j.jpowsour.2006.05.040
[20]	Michel Broussely, Graham Archdale. Li-ion batteries and portable power source prospects for the next 5-10 years[J]. Journal of Po-wer Sources, 2004,136(2):386-394.
[21]	花蕾, 潘晓燕. 石墨烯水泥基复合材料早龄期电学及力学性能的研究[J]. 低温建筑技术, 2018,40(3):6-12.
[22]	吕生华, 张佳, 朱琳琳, 等. 氧化石墨烯对水泥基复合材料微观结构的调控作用及对抗压抗折强度的影响[J]. 化工学报, 2017,68(6):2585-2595.
[23]	彭晖, 戈娅萍, 杨振天, 等. 氧化石墨烯增强水泥基复合材料的力学性能及微观结构[J].复合材料学报, 2018(8):2132-2139.
[24]	Kim Jaemyung, Cote L J, Huang J X, et al. Two dimensional soft material:New faces of graphene oxide[J]. Accounts of Chemical Research, 2012,45(8):1356-1364. doi: 10.1021/ar300047s pmid: 22663082

首页

全国无机盐信息中心

中国化工学会

无机酸碱盐专业委员会