A closed-loop process for recycling LiNi1/3Co1/3Mn1/3O2 from the cathode scraps of lithium-ion batteries: Process optimization and kinetics analysis

2015 ◽  
Vol 150 ◽  
pp. 186-195 ◽  
Author(s):  
Xihua Zhang ◽  
Hongbin Cao ◽  
Yongbing Xie ◽  
Pengge Ning ◽  
Huijiao An ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Process Optimization ◽  
Closed Loop ◽  
Lithium Ion ◽  
Kinetics Analysis

scholarly journals Coordinated Planning in Closed-loop Supply Chains and its Implications on the Production and Recycling of Lithium-ion Batteries

Procedia CIRP ◽  
2021 ◽  
Vol 98 ◽  
pp. 464-469
Author(s):  
Christian Scheller ◽  
Steffen Blömeke ◽  
Mathias Nippraschk ◽  
Kerstin Schmidt ◽  
Mark Mennenga ◽  
...  
Keyword(s):  
Supply Chains ◽  
Lithium Ion Batteries ◽  
Closed Loop ◽  
Lithium Ion ◽  
Closed Loop Supply Chains

Increased residual lithium compounds guided design for green recycling of spent lithium-ion cathodes

2021 ◽  
Author(s):  
Min Fan ◽  
Xin Chang ◽  
Yu-Jie Guo ◽  
Wan-Ping Chen ◽  
Ya-Xia Yin ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Closed Loop ◽  
Lithium Ion ◽  
Green Water ◽  
Lithium Compounds ◽  
Water Based

Based on the increased residual lithium compounds of the degraded cathode, a green water-based strategy is designed for achieving closed-loop recycling of spent lithium-ion batteries.

scholarly journals Feedback PID Controller-Based Closed-Loop Fast Charging of Lithium-Ion Batteries Using Constant-Temperature–Constant-Voltage Method

Electronics ◽  
2021 ◽  
Vol 10 (22) ◽  
pp. 2872
Author(s):  
Ayesha Kaleem ◽  
Ihsan Ullah Khalil ◽  
Sara Aslam ◽  
Nasim Ullah ◽  
Sattam Al Otaibi ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Constant Temperature ◽  
Pid Controller ◽  
Closed Loop ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Constant Voltage ◽  
Mode Control ◽  
Control Circuits

Lithium-ion batteries are the most used technology in portable electronic devices. High energy density and high power per mass battery unit make it preferable over other batteries. The existing constant-temperature and constant-voltage charging technique (CT–CV), with a closed loop, lacks a detailed design of control circuits, which can increase charging speed. This article addresses this research gap in a novel way by implementing a simpler feedback proportional integral and differential (PID) control to a closed-loop CT–CV charging circuit. Voltage-mode control (VMC) and average current-mode control (ACM) methods were implemented to maintain the battery voltage, current, and temperature at safe limits. As per simulation results, 23% faster charging is achieved by implementing VMC and almost 50% faster charging is attained by employing the ACM technique in the PID controller. Our proposed control strategy is validated experimentally, which yields up to 25% faster charging of a battery than the reference battery.

scholarly journals Closed-Loop Utilization of Molten Salts in Layered Material Preparation for Lithium-Ion Batteries

2021 ◽  
Vol 8 ◽  
Author(s):  
Zhanjun Chen ◽  
Tao Wang ◽  
Haijun Yu ◽  
Jun Guo ◽  
Hongbin Zhong ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Molten Salts ◽  
Closed Loop ◽  
Lithium Ion ◽  
Layered Material ◽  
Elemental Distribution ◽  
Preparation Methods ◽  
Environmental Friendly ◽  
First Time ◽  
Material Preparation

Molten-salt assisted solid-state synthesis is considered a promising method in obtaining layer-structured cathodes for lithium-ion batteries with homogeneous elemental distribution and controllable morphologies. However, drawbacks like resource wasting which have arisen from redundant salt removal after sintering greatly hinder the broader application of this technique. In this paper, a closed-loop utilization of molten salts is proposed for the first time with specific electrochemical properties of the products studied. Results confirm the feasibility of this strategy, and that with only replenishing LiOH, the recycled LiOH-LiCl molten salts can be successfully reused into another LiNi0.5Co0.2Mn0.3O2 synthesis, which exhibits almost equal electrochemical performance to the product using fresh molten salts. We believe this research can provide significant insight in guiding green and environmental-friendly preparation methods involving molten salts.

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