Results 1 to 10 of about 52 (39)
Graphical abstract Abstract A flexible carbon fiber‐confined yolk‐shelled silicon‐based composite is reported as an anode material for lithium storage applications. Silicon nanoparticles (Si NPs) are confined by the N‐doped hollow carbon cages (Si‐NHC) and these uniform dispersed yolk‐shell‐structured Si‐NHC units were encapsulated by the carbon fibers
Dong‐Chen Jia +8 more
wiley +1 more source
Recovering Critical Elements From Wastewater for Battery Materials: A Review
ABSTRACT Driven by global carbon neutrality goals, the transition toward a circular economy and sustainable resource management has become increasingly imperative. Given the indispensable role of battery technologies in modern energy storage systems, strategic elements such as lithium (Li), cobalt (Co), and nickel (Ni)—identified by the European ...
Ting Lei +5 more
wiley +1 more source
针对油田采出水吸附提锂所得富锂液存在锂浓度低、杂质含量高,易造成后续碳酸锂沉淀过程能耗高、纯度差等问题,本文系统开展了膜集成工艺用于富锂液纯化与浓缩的研究。以中原油田吸附提锂富锂液为研究对象,构建了“反渗透(RO)初步浓缩→纳滤(NF)深度除杂→两级电渗析(ED)串联浓缩”的梯级耦合工艺,考察该集成体系整体分离浓缩效果。结果表明:RO单元将富锂液中Li+从167 mg/L浓缩至2074 mg/L,浓缩倍数达12.42倍,且对Li⁺截留率不低于99.2%;NF单元对Ca2+、Mg2+的去除率分别达82.3%
王莲莲, 袁伟红, 单威威
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ABSTRACT Against the backdrop of global clean energy transition and surging demand for lithium resources, lithium extraction from salt lakes presents unprecedented development opportunities. Nanofiltration (NF) membrane technology, recognized for its efficiency, energy savings, and environmental benefits, demonstrates significant application potential ...
Wen‐Feng Li +5 more
wiley +1 more source
ABSTRACT Chlorination roasting has emerged as a promising pyrometallurgical strategy for the selective recovery of lithium from spent lithium‐ion batteries (LIBs). In this study, a natural roasting agent, seawater‐derived chlorides, was employed to selectively extract lithium from spent LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode. MgCl2·6H2O, a main component
Bei‐Lei Zhang +7 more
wiley +1 more source
ABSTRACT Deep eutectic solvents (DESs) have displayed a significant potential in green recycling of spent lithium‐ion batteries (LIBs) cathode materials. In this study, we proposed a computational screening strategy based on the binding energy and hydrogen bonding performance via density functional theory and molecular dynamic calculation, achieving a ...
Yang Chen +7 more
wiley +1 more source
In Situ Uniform Lithium Enrichment for Dense, High‐Performance LLZO Solid Electrolytes
ABSTRACT A major challenge in garnet‐type Li7La3Zr2O12 (LLZO) system all‐solid‐state electrolytes is the high porosity that typically remains after sintering, which compromises ionic conductivity and degrades battery cycling performance. To address this, we propose an innovative strategy to achieve uniform lithium enrichment on the surface of ...
Yi‐Yang Xiao +8 more
wiley +1 more source
新能源电池行业是深入推进能源革命、实现可持续发展的重要新质生产力。分析了锂离子电池生产废水的来源与水质水征,总结了面向达标排放、再生处理与资源化回收的处理技术与工艺体系,探讨了当前面临的技术挑战与未来发展方向。锂离子电池废水包括含磷、含钴、三元废水,萃取废水,石墨提纯废水,正负极废水、电解液废水和清洗废水,部分废水的COD可达3 000~6 000 mg/L,Li+质量浓度高达3 100 mg/L,SO42-质量浓度可达8 700 mg/L。实际工程采用“物化预处理-生化处理-深度处理与资源化”技术体系:
邱渝 +7 more
doaj +4 more sources
近年来,随着新能源汽车市场对碳酸锂产品需求量的增加,气田采出水中锂资源开发引起社会各界广泛关注。气田采出水因化学组分复杂、Li+浓度相对盐湖卤水低,提锂工艺一直是制约气田采出水中锂资源化利用的关键问题。基于长庆靖边气田采出水低品位含锂特征(质量浓度50 mg/L以下),分别从预处理工艺及参数优选、提锂关键技术(吸附法和电化学法)评价及参数优化、现场提锂效果及成本分析等方面开展了研究。结果表明,气田采出水经絮凝沉淀-臭氧催化氧化预处理后,浊度去除率在90%以上,COD去除率可达43 ...
姬伟 +6 more
doaj +2 more sources
油气田采出水作为一种被忽略的液态锂资源,具有Li⁺浓度低(50~300 mg/L)、Ca2+和Mg2+浓度高、有机组分伴生等特征。钛系锂离子筛(HTO)中的Ti4+拥有稳定的d0电子构型,在高钙镁复杂体系应用时具有稳定性强、抗歧化能力和宽pH适用性的优势。然而,粉体材料工程化制备过程中“工艺-结构-性能”的构效关系尚不明确,从理想模拟水质环境到复杂油田水质的工况适应性缺乏系统验证。基于此,本文以“面向工程放大的评价型综述”为定位,聚焦于钛系锂离子筛(HTO)前驱体合成控制与成型颗粒的稳定性 ...
司艳晓
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