scholarly journals Effect of Heating on the Pretreatment Process for Recycling Li-Ion Battery Cathode

2019 ◽  
Vol 4 (2) ◽  
pp. 105
Author(s):  
Soraya Ulfa Muzayanha ◽  
Cornelius Satria Yudha ◽  
Luthfi Mufidatul Hasanah ◽  
Adrian Nur ◽  
Agus Purwanto
Keyword(s):  
Active Material ◽  
High Capacity ◽  
Xrd Analysis ◽  
Atomic Absorption Spectrophotometry ◽  
High Energy ◽  
High Energy Density ◽  
Potential Hazard ◽  
Li Ion Batteries ◽  
Recycling Process ◽  
Li Ion

<p>The use of Li-ion batteries has increased with the increasing of portable electronic media. Li-ion batteries have a life cycle hence a recycling process is needed in order to reduce the potential hazard of waste while increasing the economic value of unused battery material, especially its cathode active material. This study used Lithium Nickel Cobalt Oxide (NCA) cathode scrap to be regenerated which NCA material has high energy density and high capacity. The pretreatment process is one of the determinants in the subsequent recycling process. In this study, the effect of heating on the pretreatment process was carried out with variation temperatures of 500-800<sup>0</sup>C to obtain powder which will be recycled. The combination process of the leaching and co-precipitation was used to regenerate the cathode active material. Atomic Absorption Spectrophotometry (AAS) was performed to determine leaching efficiency using 4M H<sub>2</sub>SO<sub>4</sub> at 40<sup>0</sup>C for 3 hours. X-ray Diffraction (XRD) analysis showed that NCA material has been successfully regenerated which the diffraction peaks of NCA material was in accordance with JCPDS standards. The morphology of NCA material was tested using Scanning Electron Microscopy (SEM). Electrochemical testing uses a cylindrical battery at 2.7-4.2 Volt which the initial specific discharge capacity of the power is 62.13 mAh / g.</p>

scholarly journals Carbon Nanotubes Coated Paper as Current Collectors for Secondary Li-ion Batteries

2019 ◽  
Vol 8 (1) ◽  
pp. 18-23 ◽  
Author(s):  
Lakshman K. Ventrapragada ◽  
Stephen E. Creager ◽  
Apparao M. Rao ◽  
Ramakrishna Podila
Keyword(s):  
Carbon Nanotubes ◽  
Active Material ◽  
Spray Coating ◽  
Aluminum Foil ◽  
Cost Effective ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Current Collectors ◽  
Li Ion

Abstract We developed a surfactant-free spray coating process to coat commercial cellulose-based paper with carbon nanotubes (CNTs) and prepared paper-CNTs current collectors for Li-ion batteries (LIBs). The paper-CNTs were used as current collectors for replacing conventional aluminum foil. Li-ion batteries assembled using paper-CNTs were coated with LiFePO4 as the active material and used as cathodes with Li as the anode, and the assembled LIBs showed a high energy density of 460 Wh kg−1 at a power density of 250 W kg−1. These electrodes were stable even at a current density as high as 600 mA g−1, and showed cycling stability for ~450 cycles at 150 mAh g−1. Furthermore, paper-CNTs based electrodes showed ~17% improvement in areal capacity compared to commercial aluminum-based electrodes suggesting that paper-CNTs can readily displace Al foils as current collectors. Summary: Paper based current collectors have been proposed as a cost-effective and simple replacement for aluminum current collectors. This has been achieved by a scalable spray coating of CNTs on printing papers without any surfactants or binders and subsequently testing them as current collectors for Li-ion batteries.

Hierarchically porous Li1.2Mn0.6Ni0.2O2as a high capacity and high rate capability positive electrode material

2016 ◽  
Vol 40 (2) ◽  
pp. 1312-1322 ◽  
Author(s):  
Shanmughasundaram Duraisamy ◽  
Tirupathi Rao Penki ◽  
Munichandraiah Nookala
Keyword(s):  
High Capacity ◽  
Rate Capability ◽  
High Energy ◽  
High Rate ◽  
High Energy Density ◽  
Dual Porosity ◽  
Li Ion Batteries ◽  
High Rate Capability ◽  
Positive Electrode Material ◽  
Li Ion

Lithium-rich manganese oxide with dual porosity as the cathode material for the next generation high energy density Li-ion batteries.

Optimized electron occupancy of solid-solution transition metals for suppressing the oxygen evolution of Li2MnO3

2021 ◽  
Vol 9 (14) ◽  
pp. 9337-9346
Author(s):  
Erhong Song ◽  
Yifan Hu ◽  
Ruguang Ma ◽  
Yining Li ◽  
Xiaolin Zhao ◽  
...  
Keyword(s):  
Solid Solution ◽  
Energy Density ◽  
Transition Metals ◽  
Oxygen Evolution ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Increasing Demand ◽  
Layered Cathodes

Li-rich layered cathodes based on Li2MnO3 have exhibited extraordinary promise to satisfy the rapidly increasing demand for high-energy density Li-ion batteries.

Novel low-cost, high-energy-density (>700 Wh kg−1) Li-rich organic cathodes for Li-ion batteries

2021 ◽  
Vol 415 ◽  
pp. 128509
Author(s):  
Qihang Yu ◽  
Wu Tang ◽  
Yang Hu ◽  
Jian Gao ◽  
Ming Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Low Cost ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Li Ion

Accordion-like stretchable Li-ion batteries with high energy density

2019 ◽  
Vol 17 ◽  
pp. 136-142 ◽  
Author(s):  
Changmin Shi ◽  
Tianyang Wang ◽  
Xiangbiao Liao ◽  
Boyu Qie ◽  
Pengfei Yang ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Li Ion

Design and Realization of an Intelligent Protection Circuit for Li-Ion Batteries

2011 ◽  
Vol 282-283 ◽  
pp. 82-85
Author(s):  
Xiao Peng Ji ◽  
Xing Feng Guan ◽  
Zhen Hong Wang
Keyword(s):  
Energy Density ◽  
Circuit Design ◽  
Theoretical Basis ◽  
Safety Concern ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Safety Protection ◽  
Li Ion ◽  
Protection Circuit

Li-ion batteries have been widely used. However, the safety concern is always serious due to its high energy density. In order to improve the safety of the batteries, it is necessary to use the protection integration circuit. In this article, the concept for realizing the safety protection of Li-ion batteries during charging and discharging is described briefly. A circuit design using Seiko BMS chip S-8209 is purposed. Based on this, a simulation was performed and verified using Pspice program, which provides a theoretical basis for the circuit design.

scholarly journals Synthesis of Si/Fe2O3-Anchored rGO Frameworks as High-Performance Anodes for Li-Ion Batteries

2021 ◽  
Vol 22 (20) ◽  
pp. 11041
Author(s):  
Yajing Yan ◽  
Yanxu Chen ◽  
Yongyan Li ◽  
Xiaoyu Wu ◽  
Chao Jin ◽  
...  
Keyword(s):  
High Performance ◽  
Melt Spinning ◽  
Three Dimensional ◽  
High Capacity ◽  
Reversible Capacity ◽  
High Energy ◽  
High Specific Surface Area ◽  
High Energy Density ◽  
Active Components ◽  
Li Ion

By virtue of the high theoretical capacity of Si, Si-related materials have been developed as promising anode candidates for high-energy-density batteries. During repeated charge/discharge cycling, however, severe volumetric variation induces the pulverization and peeling of active components, causing rapid capacity decay and even development stagnation in high-capacity batteries. In this study, the Si/Fe2O3-anchored rGO framework was prepared by introducing ball milling into a melt spinning and dealloying process. As the Li-ion battery (LIB) anode, it presents a high reversible capacity of 1744.5 mAh g−1 at 200 mA g−1 after 200 cycles and 889.4 mAh g−1 at 5 A g−1 after 500 cycles. The outstanding electrochemical performance is due to the three-dimensional cross-linked porous framework with a high specific surface area, which is helpful to the transmission of ions and electrons. Moreover, with the cooperation of rGO, the volume expansion of Si is effectively alleviated, thus improving cycling stability. The work provides insights for the design and preparation of Si-based materials for high-performance LIB applications.

Triptycene-based quinone molecules showing multi-electron redox reactions for large capacity and high energy organic cathode materials in Li-ion batteries

2018 ◽  
Vol 6 (7) ◽  
pp. 3134-3140 ◽  
Author(s):  
Ji Eon Kwon ◽  
Chang-Seok Hyun ◽  
Young Jun Ryu ◽  
Joungphil Lee ◽  
Dong Joo Min ◽  
...  
Keyword(s):  
Energy Density ◽  
Cathode Materials ◽  
Redox Reactions ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Large Capacity ◽  
Li Ion

Triptycene bearing three benzoquinone moieties in a rigid 3-D tripod structure is capable of utilizing five-electron redox reactions that can provide a large capacity and high energy density in Li-ion cells.

Challenges in Developing High Energy Density Li-Ion Batteries with High Voltage Cathodes

2014 ◽  
pp. 853-857 ◽  
Author(s):  
T. Richard Jow ◽  
Jan L. Allen ◽  
Oleg A. Borodin ◽  
Samuel A. Delp ◽  
Joshua L. Allen
Keyword(s):  
Energy Density ◽  
High Voltage ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Li Ion
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