On the electrophoretic and sol–gel deposition of active materials on aluminium rod current collectors for three-dimensional Li-ion micro-batteries

2014 ◽  
Vol 562 ◽  
pp. 63-69 ◽  
Author(s):  
Gabriel Oltean ◽  
Mario Valvo ◽  
Leif Nyholm ◽  
Kristina Edström
Keyword(s):  
Sol Gel ◽  
Three Dimensional ◽  
Active Materials ◽  
Current Collectors ◽  
Li Ion

scholarly journals A sustainable approach to cathode delamination using a green solvent

RSC Advances ◽  
2021 ◽  
Vol 11 (44) ◽  
pp. 27356-27368
Author(s):  
Onurcan Buken ◽  
Kayla Mancini ◽  
Amrita Sarkar
Keyword(s):  
End Of Life ◽  
Li Ion Batteries ◽  
Green Solvent ◽  
Active Materials ◽  
Current Collectors ◽  
Li Ion

A green solvent-based methodology was developed for delaminating cathode active materials from aluminium current collectors in end-of-life Li-ion batteries.

THE EFFECTS OF CARBON NANO-COATING ON Li(Ni0.8Co0.15Al0.05)O2 CATHODE MATERIAL USING ORGANIC CARBON FOR Li-ION BATTERY

2010 ◽  
Vol 17 (01) ◽  
pp. 51-58 ◽  
Author(s):  
JEONG-HUN JU ◽  
YOUNG-MIN CHUNG ◽  
YU-RIM BAK ◽  
MOON-JIN HWANG ◽  
KWANG-SUN RYU
Keyword(s):  
Cathode Material ◽  
Coating Layer ◽  
Sol Gel ◽  
Electronic Conductivity ◽  
Lithium Ion ◽  
Cyclic Voltammogram ◽  
Active Materials ◽  
Nano Coating ◽  
Primary Particles ◽  
Li Ion

Carbon nano-coated LiNi 0.8 Co 0.15 Al 0.05 O 2/ C (LNCAO/C) cathode-active materials were prepared by a sol–gel method and investigated as the cathode material for lithium ion batteries. Electrochemical properties including the galvanostatic charge–discharge ability and cyclic voltammogram behavior were measured. Cyclic voltammetry (2.7–4.8 V) showed that the carbon nano-coating improved the "formation" of the LNCAO electrode, which was related to the increased electronic conductivity between the primary particles. The carbon nano-coated LNCAO/C exhibited good electrochemical performance at high C -rate. Also, the thermal stability at a highly oxidized state of the carbon nano-coated LNCAO was remarkably enhanced. The carbon nano-coating layer can serve as a physical and/or (electro-)chemical protection shell for the underlying LNCAO, which is attributed to an increase of the grain connectivity (physical part) and also to the protection of metal oxide from chemical reactions (chemical part).

Stable high-areal-capacity nanoarchitectured germanium anodes on three-dimensional current collectors for Li ion microbatteries

2016 ◽  
Vol 4 (3) ◽  
pp. 1060-1067 ◽  
Author(s):  
Gwang-Hee Lee ◽  
Seun Lee ◽  
Chan Woo Lee ◽  
Changhoon Choi ◽  
Dong-Wan Kim
Keyword(s):  
Three Dimensional ◽  
Cycling Performance ◽  
High Energy ◽  
High Mass ◽  
Electrode Design ◽  
Mass Loading ◽  
Current Collectors ◽  
Li Ion ◽  
Areal Capacity

Ge nanoarrays anchored on 3D Cu nanoframework current collectors have demonstrated high areal capacity and stable cycling performance. The newly developed electrode design enabled high mass loading of active Ge and efficient conductive pathways for high-energy Li-ion microbatteries.

scholarly journals Enhancement of LiFePO4 (LFP) Electrochemical PerformanceTthrough the Insertion of Coconut Shell Derived rGO – Like Carbon as Cathode of Li-ion Battery

2021 ◽  
Author(s):  
Eka Suarso ◽  
Firsta Agung Setyawan ◽  
Achmad Subhan ◽  
Muhammad Mahyiddin Ramli ◽  
Nur Syakimah Ismail ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Sol Gel ◽  
Specific Capacity ◽  
Three Dimensional ◽  
Coconut Shell ◽  
Li Ion Battery ◽  
Retention Capacity ◽  
Weight Content ◽  
Li Ion ◽  
Gel Technique

Abstract In this study, an rGO – like carbon (C) compound was synthesized from coconut shell (biomass), and inserted into LiFePO4 (LFP), as Li-ion battery cathode. Thus, an LFP/C nanocomposite was successfully fabricated using a combination of the sol-gel technique and mechanical ultracentrifugation. LiFePO4 precursors were prepared from commercial starting materials, using the sol-gel technique, and the composites’ carbon weight content was varied between 15% and 30%. Subsequently, the microstructural characteristics and electrochemical properties as cathode for Li-ion batteries were measured. In addition to exhibiting higher electrical conductivity, the synthesized LFP/C nanocomposite showed higher capacity and better cycle capability. Also, the nanocomposite cathode showed a specific capacity of 128 mAhg-1 in the first cycle, and a retention capacity of 75% after 10 cycles, at room temperature and a rate of 0.1 C. The enhanced electrical conductivity and electrochemical performance of the samples prepared are believed to be due to three-dimensional conduction network formed by the rGO like carbon sheets, as observed by electron microscopy.

Rationally Designed Three-Dimensional Porous Nico 2n@C Reticular Structure for High-Performance Li-Ion Batteries

2020 ◽  
Author(s):  
Peiyao Wang ◽  
Bangchuan Zhao ◽  
Jin Bai ◽  
Kunzhen Li ◽  
Hongyang Ma ◽  
...  
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Li Ion Batteries ◽  
Reticular Structure ◽  
Li Ion

scholarly journals Construction of the Cellulose Nanofibers (CNFs) Aerogel Loading TiO2 NPs and Its Application in Disposal of Organic Pollutants

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1841
Author(s):  
Kang Li ◽  
Xuejie Zhang ◽  
Yan Qin ◽  
Ying Li
Keyword(s):  
High Efficiency ◽  
Sol Gel ◽  
Cellulose Nanofibers ◽  
Three Dimensional ◽  
Good Mechanical Property ◽  
Polar Groups ◽  
Dimensional Network ◽  
Natural Polysaccharide ◽  
Valuable Method ◽  
Adsorption Capability

Aerogels have been widely used in the adsorption of pollutants because of their large specific surface area. As an environmentally friendly natural polysaccharide, cellulose is a good candidate for the preparation of aerogels due to its wide sources and abundant polar groups. In this paper, an approach to construct cellulose nanofibers aerogels with both the good mechanical property and the high pollutants adsorption capability through chemical crosslinking was explored. On this basis, TiO2 nanoparticles were loaded on the aerogel through the sol-gel method followed by the hydrothermal method, thereby the enriched pollutants in the aerogel could be degraded synchronously. The chemical cross-linker not only helps build the three-dimensional network structure of aerogels, but also provides loading sites for TiO2. The degradation efficiency of pollutants by the TiO2@CNF Aerogel can reach more than 90% after 4 h, and the efficiency is still more than 70% after five cycles. The prepared TiO2@CNF Aerogels have high potential in the field of environmental management, because of the high efficiency of treating organic pollutes and the sustainability of the materials. The work also provides a choice for the functional utilization of cellulose, offering a valuable method to utilize the large amount of cellulose in nature.

Interpenetrating Gels as Conducting/Adhering Matrices Enabling High-Performance Silicon Anodes

2021 ◽  
Author(s):  
Tingting Xia ◽  
Chengfei Xu ◽  
Pengfei Dai ◽  
Xiaoyun Li ◽  
Riming Lin ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Electrode Materials ◽  
Three Dimensional ◽  
Electrochemical Energy Storage ◽  
Active Materials ◽  
Silicon Anodes ◽  
Weak Binding ◽  
Binding Forces

Three-dimensional (3D) conductive polymers are promising conductive matrices for electrode materials toward electrochemical energy storage. However, their fragile nature and weak binding forces with active materials could not guarantee long-term...

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