A5029667588- Advancements in Battery Materials
- Extraction and Separation Processes
- Recycling and Waste Management Techniques
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Semiconductor materials and devices
- Machine Learning in Materials Science
- X-ray Diffraction in Crystallography
- Semiconductor materials and interfaces
- Fuel Cells and Related Materials
- Metal Extraction and Bioleaching
- Advanced Control Systems Optimization
- Process Optimization and Integration
- Crystallization and Solubility Studies
Tsinghua–Berkeley Shenzhen Institute
2022-2025
Tsinghua University
2022-2025
Shanghai Jiao Tong University
2022-2025
Central South University
2019-2023
Changsha University
2021
Xi'an Jiaotong University
2006
The recycling of spent lithium-ion batteries is an effective approach to alleviating environmental concerns and promoting resource conservation. LiFePO4 have been widely used in electric vehicles energy storage stations. Currently, lithium loss, resulting formation Fe(III) phase, mainly responsible for the capacity fade cathode. Another factor poor electrical conductivity that limits its rate capability. Here, we report use a multifunctional organic salt (3,4-dihydroxybenzonitrile dilithium)...
Recycling spent lithium-ion batteries (LIBs) is promising for resource reuse and environmental conservation but suffers from complex processing loss of embedded value LIBs in conventional metallurgy-based recycling routes. Herein, we selected a eutectic LiI-LiOH salt with the lowest point among binary lithium systems to provide Li-rich molten environment, not only offering excess benefiting ion diffusion compared that solid environment. Hence, highly degraded LiNi0.5Co0.2Mn0.3O2 which high...
The recycling of lithium-ion batteries is important due to limited metallic resources and environmental protection. However, most current studies aim at only extracting valuable components from cathode materials, the lithium in anode usually ignored its low concentration. Herein, we develop an integrated strategy for both materials. Batteries are disassembled, lithiated graphite extracted water converted Li2CO3 after absorbing CO2 air, which then used direct regeneration LiCoO2...
Abstract Lithium cobalt oxide (LCO) is widely used in Li‐ion batteries due to its high volumetric energy density, which generally charged 4.3 V. Lifting the cut‐off voltage of LCO from V 4.7 will increase specific capacity 150 230 mAh g ‐1 with a significant improvement 53%. However, suffers serious problems H1‐3/O1 phase transformation, unstable interface between cathode and electrolyte, irreversible oxygen redox reaction at Herein, stabilization band structure modification are proposed...
A large amount of spent LiFePO4 (LFP) has been produced in recent years because it is one the most widely used cathode materials for electric vehicles. The traditional hydrometallurgical and pyrometallurgical recycling methods are doubted economic environmental benefits; direct regeneration method considered a promising way to recycle LFP. However, performance regenerated LFP by not ideal due migration Fe ions during cycling irreversible phase transition caused sluggish Li+ diffusion. key...
Recycling spent lithium-ion batteries (LIBs) has become an urgent task to address the issues of resource shortage and potential environmental pollution. However, direct recycling LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode is challenging because strong electrostatic repulsion from a transition metal octahedron in lithium layer provided by rock salt/spinel phase that formed on surface cycled severely disrupts Li+ transport, which restrains replenishment during regeneration, resulting regenerated...
Abstract Adding extra raw materials for direct recycling or upcycling is prospective battery recycling, but overlooks subtracting specific components beforehand can facilitate the to a self-sufficient mode of sustainable production. Here, subtractive transformation strategy degraded LiNi 0.5 Co 0.2 Mn 0.3 O 2 and LiMn 4 5 V-class disordered spinel 1.5 -like cathode material proposed. Equal amounts Ni from are selectively extracted, remaining transition metals directly converted into 0.4 0.1...
Abstract Sustainable battery recycling is essential for achieving resource conservation and alleviating environmental issues. Many open/closed-loop strategies critical metal or direct recovery aim at a single component, the reuse of mixed cathode materials significant challenge. To address this barrier, here we propose an upcycling strategy spent LiFePO 4 Mn-rich cathodes by structural design transition replacement, which uses green deep eutectic solvent to regenerate high-voltage...
The direct recycling of cathode materials in lithium-ion batteries is important for environmental protection and resource conservation. key regeneration processes are composition replenishment atom rearrangement, both which depend on the migration diffusion atoms. However, degraded LiNi
Reuse and recycling of retired electric vehicle (EV) batteries offer a sustainable waste management approach but face decision-making challenges. Based on the process-based life cycle assessment method, we present strategy to optimize pathways battery treatments economically environmentally. The is applied various reuse scenarios with capacity configurations, including energy storage systems, communication base stations, low-speed vehicles. Hydrometallurgical, pyrometallurgical, direct...
LiCoO2 has suffered from poor stability under high voltage as a result of insufficient Co-O bonding that causes lattice oxygen release and distortions. Herein, we fabricated high-voltage at 4.6 V by doping with Ni/Mn atoms, which are obtained spent LiNi0.5Mn0.3Co0.2O2 cathode materials. The as-prepared substitutional dopants in the Co layer enhances suppresses harmful phase transformation during delithiation, thus stabilizing layered structure leading to superior electrochemical performance...
Unsorted retired batteries with varied cathode materials hinder the adoption of direct recycling due to their cathode-specific nature. The surge in necessitates precise sorting for effective recycling, but challenges arise from varying operational histories, diverse manufacturers, and data privacy concerns collaborators (data owners). Here we show, a unique dataset 130 lithium-ion spanning 5 7 federated machine learning approach can classify these without relying on past data, safeguarding...
Abstract Lithium iron phosphate (LiFePO 4 , LFP) batteries are extensively used in electric vehicles and energy storage due to their good cycling stability safety. However, the finite service life of lithium‐ion leads significant amounts retired LFP batteries, urgently required be recycled by environmentally friendly effective methods. Here, a direct regeneration strategy using natural low‐cost L‐threonine as multifunctional reductant is proposed. The hydroxyl groups amino act electron...
Abstract Facing the resource and environmental pressures brought by retiring wave of lithium‐ion batteries (LIBs), direct recycling methods are considered to be next generation's solution. However, contradiction between limited battery life demand for rapidly iterating technology forces recovery paradigm shift toward “direct upcycling.” Herein, a closed‐loop upcycling strategy that converts waste current collector debris into dopants is proposed, highly inclusive eutectic molten salt system...
Battery Recycling In article number 2301540, Guangmin Zhou, Zheng Liang, and co-workers review the development of solid-state battery technology, along with a discussion on recent advances potentially viable recycling concepts in all-solid-state Li-metal recycling. Due to high energy density excellent safety, batteries have great potential as ultimate solution for lithiumbased are expected bring breakthroughs sustainable batteries, through technology recycling-oriented design.
Recycling the graphite anode is essential for both environmental protection and resource sustainability in lithium-ion batteries. Current recycling strategies emphasize closed-loop recovery but ignore potential value-added utilization. Herein, we present an upcycling strategy that converts spent into fast-charging graphite. By creating isotropic ion transport pathway on surface of utilizing fast migration channel inherent bulk's defect structure, a direct upgrade charging achieved. A...
Abstract Lithiation reactions driven by chemical potential offer a promising avenue for directly regenerating degraded lithium iron phosphate (LFP). However, the choice of solution system significantly influences supplementation where improper selection may result in poor recovery or extremely slow kinetics. Herein, it is identified that most critical factor affecting repair effectiveness redox anions solution, which determines whether spent LFP (SLFP) can undergo spontaneous lithiation...
The practical development of Li | |S batteries is hindered by the slow kinetics polysulfides conversion reactions during cycling. To circumvent this limitation, researchers suggested use transition metal-based electrocatalytic materials in sulfur-based positive electrode. However, atomic-level interactions among multiple sites are not fully understood. Here, to improve understanding sites, we propose a multi-view machine-learned framework evaluate electrocatalyst features using limited...