scholarly journals Methods of coating a three-dimensional structure with polymer electrolytes for lithium-ion batteries

2021 ◽  
Vol 134 (1) ◽  
pp. 54-62
Author(s):  
K.A. Beysembaeva ◽  
◽  
Zh.D. Nurymov ◽  
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion Batteries ◽  
Polymer Electrolytes ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Dip Coating ◽  
Dimensional Structure ◽  
Ni Foam ◽  
Conformal Coating ◽  
Coating Method

The paper considers various methods of conformal coating the three-dimensional structure of Ni foam with polymers as electrolytes in lithium-ion batteries. Polymethylmethacrylate (PMMA), polyacrylonitrile (PAN), polyvinylidene fluoride (PVDF), and polyethylene oxide (PEO) were chosen as polymer electrolytes because of their good ionic conductivity and mechanical stability. Conformal coating was performed using two methods: drop coating, dip coating. The polymer-coated three-dimensional Ni foams were characterized by field-emission scanning electron microscopy (FE-SEM) to determine the more conformal coating method and testing the ionic conductivity of polymers. From this research, it could be concluded that the dip coating method allows a more conformal coating of the three-dimensional Ni foam structure and the polymers obtained by this method have a good value of ionic conductivity.

A three-dimensional multilayered SiO–graphene nanostructure as a superior anode material for lithium-ion batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (69) ◽  
pp. 36502-36506 ◽  
Author(s):  
Chenfeng Guo ◽  
Jingxuan Mao ◽  
Dianlong Wang
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Anode Material ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Ni Foam ◽  
Electrode Performance ◽  
Reduced Graphene ◽  
Graphene Nanostructure

A Three-dimensional (3D) multilayered nanostructure to improve the electrode performance of SiO-based material through the use of reduced graphene oxide (RGO) film and a Ni foam substrate has been developed.

Vertically aligned VO2(B) nanobelt forest and its three-dimensional structure on oriented graphene for energy storage

2015 ◽  
Vol 3 (20) ◽  
pp. 10787-10794 ◽  
Author(s):  
Guofeng Ren ◽  
Md Nadim Ferdous Hoque ◽  
Xuan Pan ◽  
Juliusz Warzywoda ◽  
Zhaoyang Fan
Keyword(s):  
Energy Storage ◽  
Lithium Ion Batteries ◽  
Forest Structure ◽  
High Performance ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Dimensional Structure ◽  
Two Dimensional ◽  
Three Dimensional Structure ◽  
Vertically Aligned

Assembling two-dimensional graphene and VO2(B) nanomaterials into an ordered three-dimensional forest structure for high performance lithium ion batteries.

Preparation of a ROMP-type imidazolium-functionalized norbornene ionic liquid block copolymer and the electrochemical property for lithium-ion batteries polyelectrolyte membranes

RSC Advances ◽  
2015 ◽  
Vol 5 (54) ◽  
pp. 43581-43588 ◽  
Author(s):  
Juan Wang ◽  
Xiaohui He ◽  
Hongyu Zhu ◽  
Defu Chen
Keyword(s):  
Ionic Liquid ◽  
Block Copolymer ◽  
Ionic Conductivity ◽  
Lithium Ion Batteries ◽  
Electrochemical Property ◽  
Polymer Electrolytes ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Polyelectrolyte Membranes

Solid polymer electrolytes with high ionic conductivity have been prepared based on an imidazolium-functionalized norbornene ionic liquid block copolymer.

scholarly journals Tailored Solid Polymer Electrolytes by Montmorillonite with High Ionic Conductivity for Lithium-Ion Batteries

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Yingjian Zhao ◽  
Yong Wang
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion Batteries ◽  
Polymer Electrolytes ◽  
High Performance ◽  
Lithium Ion ◽  
Lewis Base ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Lithium Ions ◽  
High Discharge Capacity

AbstractPolyethylene oxide (PEO)-based solid polymer electrolytes (SPEs) have important significance for the development of next-generation rechargeable lithium-ion batteries. However, strong coordination between lithium ions and PEO chains results the ion conductivity usually lower than the expectation. In this study, sub-micron montmorillonite is incorporated into the PEO frames as Lewis base center which enables the lithium ions to escape the restraint of PEO chains. After involving montmorillonite (MMT) into the SPEs, the ionic conductivity of SPEs is 4.7 mS cm− 1 at 70 °C which shows a comparable value with that of liquid electrolyte. As coupling with LiFePO4 material, the battery delivers a high discharge capacity of 150.3 mAh g− 1 and an excellent rate performance with a capacity of 111.8 mAh g− 1 at 0.16 C and maintains 58.2 mAh g− 1 at 0.8 C. This study suggests that the customized incorporation of Lewis base materials could offer a promising solution for achieving high-performance PEO-based solid-state electrolyte.

Sandwich-like CNTs@SnO 2 /SnO/Sn anodes on three-dimensional Ni foam substrate for lithium ion batteries

2016 ◽  
Vol 767 ◽  
pp. 49-55 ◽  
Author(s):  
Jing Zhang ◽  
Zengsheng Ma ◽  
Wenjuan Jiang ◽  
Youlan Zou ◽  
Yan Wang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Ni Foam

scholarly journals A Novel Electrospinning Polyacrylonitrile Separator with Dip-Coating of Zeolite and Phenoxy Resin for Li-ion Batteries

Membranes ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 267
Author(s):  
Danxia Chen ◽  
Xiang Wang ◽  
Jianyu Liang ◽  
Ze Zhang ◽  
Weiping Chen
Keyword(s):  
Thermal Stability ◽  
Ionic Conductivity ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Dip Coating ◽  
High Rate ◽  
Great Promise ◽  
Good Thermal Stability ◽  
Electrolyte Uptake

Commercial separators (polyolefin separators) for lithium-ion batteries still have defects such as low thermostability and inferior interface compatibility, which result in serious potential safety distress and poor electrochemical performance. Zeolite/Polyacrylonitrile (Z/PAN) composite separators have been fabricated by electrospinning a polyacrylonitrile (PAN) membrane and then dip-coating it with zeolite (ZSM-5). Different from commercial separators, the Z/PAN composite separators exhibit high electrolyte uptake, excellent ionic conductivity, and prominent thermal stability. Specifically, the Z/PAN-1.5 separator exhibits the best performance, with a high electrolyte uptake of 308.1% and an excellent ionic conductivity of 2.158 mS·cm−1. The Z/PAN-1.5 separator may mechanically shrink less than 10% when held at 180 °C for 30 min, proving good thermal stability. Compared with the pristine PAN separator, the Li/separator/LiFePO4 cells with the Z/PAN-1.5 composite separator have excellent high-rate discharge capacity (102.2 mAh·g−1 at 7 C) and favorable cycling performance (144.9 mAh·g−1 at 0.5 C after 100 cycles). Obviously, the Z/PAN-1.5 separator holds great promise in furthering the safety and performance of lithium-ion batteries.

Hierarchical SnO2 Nanosheets Array as Ultralong-Life Integrated Anode for Lithium-Ion Batteries

NANO ◽  
2017 ◽  
Vol 12 (06) ◽  
pp. 1750077 ◽  
Author(s):  
Shuang Yuan ◽  
Yue Zhao ◽  
Weibin Chen ◽  
Lina Zhang ◽  
Qiang Wang
Keyword(s):  
Lithium Ion Batteries ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Structural Features ◽  
Electrochemical Performances ◽  
Ni Foam ◽  
Transport Path ◽  
Template Free ◽  
Array Structure ◽  
Integrated Anode

Integrated SnO2 electrode with hierarchical nanosheets array structure growing on three-dimensional (3D) macroporous Ni foam substrates is successfully prepared via a facile and effective template-free route. The self-supported integrated electrode can be directly used as anode for lithium-ion batteries (LIBs) without adding any ancillary materials. As a result, such integrated electrode exhibits superior electrochemical performances. It maintains a high reversible discharge capacity of 1617.8[Formula: see text]mAh[Formula: see text][Formula: see text][Formula: see text]g[Formula: see text] and a high cycling stability of 829.2[Formula: see text]mAh[Formula: see text][Formula: see text][Formula: see text]g[Formula: see text] even after 500 cycles. The unique structural features with large areas, shorter transport path of ion and electron as well as robust mechanical strength are probably responsible for the enhanced performance.

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