The Effect of Electrode Binders to Electrochemical Properties of Negative Electrode Materials

2021 ◽  
Vol 105 (1) ◽  
pp. 35-42
Author(s):  
Andras Zsigmond ◽  
Jiri Libich
Keyword(s):  
Lithium Ion Batteries ◽  
Electrode Material ◽  
Polyvinylidene Fluoride ◽  
Electrode Materials ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Natural Graphite ◽  
Charge Discharge

This paper deals with various types of electrode binders used in lithium-ion batteries. The electrode binders play important role in battery, the binders directly affect almost all aspect of electrode characteristics. As the one of the most import parameter is the electrode charge-discharge long term stability. The three binders have been tested in context of negative electrode in lithium-ion battery. The natural graphite has been chosen as an active electrode material. The natural graphite takes majority as negative electrode material on commercial market with lithium-ion batteries. The three kind of binders was established for testing: polyvinylidene fluoride (PVDF), styrene-butadiene rubber (SBR) and polyimide P84. The influence of these binders on charge-discharge stability are evaluated and described in this paper.

Li5Cr7Ti6O25 as a novel negative electrode material for lithium-ion batteries

2015 ◽  
Vol 51 (74) ◽  
pp. 14050-14053 ◽  
Author(s):  
Ting-Feng Yi ◽  
Jie Mei ◽  
Yan-Rong Zhu ◽  
Zi-Kui Fang
Keyword(s):  
Lithium Ion Batteries ◽  
Electrode Material ◽  
Sol Gel ◽  
Rate Capability ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Discharge Performance ◽  
Gel Method ◽  
Negative Electrode Material ◽  
Charge Discharge

Novel submicron Li5Cr7Ti6O25, which exhibits excellent rate capability, high cycling stability and fast charge–discharge performance, is constructed using a facile sol–gel method.

Water-Soluble Elastomeric Carboxymethyl Chitosan as an Efficient Binder for Si Anodes of Lithium Ion Batteries

2021 ◽  
Vol 21 (10) ◽  
pp. 5057-5065
Author(s):  
Bo Liang ◽  
Xu Chen ◽  
Chuansheng Chen ◽  
Zhengchun Liu
Keyword(s):  
Lithium Ion Batteries ◽  
Polyvinylidene Fluoride ◽  
Lithium Ion ◽  
Carboxymethyl Chitosan ◽  
Water Soluble ◽  
Styrene Butadiene Rubber ◽  
Electrochemical Performances ◽  
Butadiene Rubber ◽  
Aqueous Emulsion ◽  
Si Anodes

The binder acts a pivotal part in determining the mechanical and electrochemical performances of lithium-ion battery electrodes. Herein, a series of water-soluble Si anode binders based on carboxymethyl chitosan (C-Cs) and styrene-butadiene rubber (SBR) is developed. Water-soluble C-Cs and aqueous emulsion SBR solution are mixed to form C-Cs/SBR binders. The physical properties of the modified Si electrode are investigated through electrolyte swelling test, peeling test, and scanning electron microscopy. The mechanical strength provided to Cu foils and active substances by the C-Cs/SBR binder is higher than that produced by C-Cs. This performance can effectively reduce the stress/strain caused by the drastic volume change of the Si anodes during repeated uses and improve the electrochemical property of lithium-ion batteries. The initial thicknesses of the Si electrodes with polyvinylidene fluoride, C-Cs, and C-Cs/SBR20 binders are approximately 7.1, 7.2, and 6.9 µm, respectively. After 100 cycles, their initial thicknesses increase to 11.2, 12.4, and 7.2 µm and correspond to expansions of 57.8%, 72.2%, and 4.3%, respectively. The discharge capacity of Si electrodes containing C-Cs/SBR20 binder reaches to 1340 mAh·g−1 when the current density is 4 A·g−1, and reserves to be 1020 mAh·g−1 after undergoing 400 cycles of repeated use at 500 mA·g−1.

scholarly journals Electrochemical study on nickel aluminum layered double hydroxides as high-performance electrode material for lithium-ion batteries based on sodium alginate binder

2021 ◽  
Author(s):  
Xinyue Li ◽  
Marco Fortunato ◽  
Anna Maria Cardinale ◽  
Angelina Sarapulova ◽  
Christian Njel ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Electrode Material ◽  
Photoelectron Spectroscopy ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Electrochemical Study ◽  
Ex Situ ◽  
Potential Range ◽  
X Ray ◽  
Storage Mechanism

AbstractNickel aluminum layered double hydroxide (NiAl LDH) with nitrate in its interlayer is investigated as a negative electrode material for lithium-ion batteries (LIBs). The effect of the potential range (i.e., 0.01–3.0 V and 0.4–3.0 V vs. Li+/Li) and of the binder on the performance of the material is investigated in 1 M LiPF6 in EC/DMC vs. Li. The NiAl LDH electrode based on sodium alginate (SA) binder shows a high initial discharge specific capacity of 2586 mAh g−1 at 0.05 A g−1 and good stability in the potential range of 0.01–3.0 V vs. Li+/Li, which is better than what obtained with a polyvinylidene difluoride (PVDF)-based electrode. The NiAl LDH electrode with SA binder shows, after 400 cycles at 0.5 A g−1, a cycling retention of 42.2% with a capacity of 697 mAh g−1 and at a high current density of 1.0 A g−1 shows a retention of 27.6% with a capacity of 388 mAh g−1 over 1400 cycles. In the same conditions, the PVDF-based electrode retains only 15.6% with a capacity of 182 mAh g−1 and 8.5% with a capacity of 121 mAh g−1, respectively. Ex situ X-ray photoelectron spectroscopy (XPS) and ex situ X-ray absorption spectroscopy (XAS) reveal a conversion reaction mechanism during Li+ insertion into the NiAl LDH material. X-ray diffraction (XRD) and XPS have been combined with the electrochemical study to understand the effect of different cutoff potentials on the Li-ion storage mechanism. Graphical abstract The as-prepared NiAl-NO3−-LDH with the rhombohedral R-3 m space group is investigated as a negative electrode material for lithium-ion batteries (LIBs). The effect of the potential range (i.e., 0.01–3.0 V and 0.4–3.0 V vs. Li+/Li) and of the binder on the material’s performance is investigated in 1 M LiPF6 in EC/DMC vs. Li. Ex situ X-ray photoelectron spectroscopy (XPS) and ex situ X-ray absorption spectroscopy (XAS) reveal a conversion reaction mechanism during Li+ insertion into the NiAl LDH material. X-ray diffraction (XRD) and XPS have been combined with the electrochemical study to understand the effect of different cutoff potentials on the Li-ion storage mechanism. This work highlights the possibility of the direct application of NiAl LDH materials as negative electrodes for LIBs.

Recent progress in rechargeable lithium batteries with organic materials as promising electrodes

2016 ◽  
Vol 4 (19) ◽  
pp. 7091-7106 ◽  
Author(s):  
Jian Xie ◽  
Qichun Zhang
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Batteries ◽  
Recent Progress ◽  
Electrode Materials ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Positive Electrode ◽  
Rechargeable Lithium Batteries ◽  
Organic Electrode ◽  
Negative Electrode Materials

Different organic electrode materials in lithium-ion batteries are divided into three types: positive electrode materials, negative electrode materials, and bi-functional electrode materials, and are further discussed.

Two-dimensional SnS2@PANI nanoplates with high capacity and excellent stability for lithium-ion batteries

2015 ◽  
Vol 3 (7) ◽  
pp. 3659-3666 ◽  
Author(s):  
Gang Wang ◽  
Jun Peng ◽  
Lili Zhang ◽  
Jun Zhang ◽  
Bin Dai ◽  
...  
Keyword(s):  
Electron Transport ◽  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Two Dimensional ◽  
Volume Changes ◽  
Nanostructured Electrode ◽  
Charge Discharge ◽  
Excellent Stability

Nanostructured electrode materials have been extensively studied with the aim of enhancing lithium ion and electron transport and lowering the stress caused by their volume changes during the charge–discharge processes of electrodes in lithium-ion batteries.

Novel Co3O4/Carbon Nanofiber Composite Electrode with High Li-Storage Capacity for Lithium Ion Batteries

2011 ◽  
Vol 197-198 ◽  
pp. 1113-1116 ◽  
Author(s):  
Wen Li Yao ◽  
Jin Qing Chen ◽  
An Yun Li ◽  
Xin Bing Chen
Keyword(s):  
Composite Materials ◽  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
Storage Capacity ◽  
Carbon Nanofiber ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Li Storage

The platelike Co3O4/carbon nanofiber (CNF) composite materials were synthesized by the calcination of β-Co(OH)2/CNF precursor prepared by a surfactant-free hydrothermal method. As negative electrode materials for lithium-ion batteries, the platelike Co3O4/CNF composites can deliver a high reversible capacity of 900 mAh g-1 for a life extending over hundreds of cycles at a current density of 100 mA g-1. The high Li-storage capacity and excellent cycling performance for Co3O4/CNF composite materials may mainly attribute to the beneficial effect of the CNFs addition on enhancing structural stability and electrical conductivity of Co3O4 platelets.

scholarly journals Enhanced Electrochemical Performance of Sb2O3 as an Anode for Lithium-Ion Batteries by a Stable Cross-Linked Binder

2019 ◽  
Vol 9 (13) ◽  
pp. 2677 ◽  
Author(s):  
Yong Liu ◽  
Haichao Wang ◽  
Keke Yang ◽  
Yingnan Yang ◽  
Junqing Ma ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Large Volume ◽  
Polyvinylidene Fluoride ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Electrochemical Stability ◽  
Esterification Reaction ◽  
Conductive Agent ◽  
Enhanced Electrochemical Performance

A binder plays an important role in lithium-ion batteries (LIBs), especially for the electrode materials which have large volume expansion during charge and discharge. In this work, we designed a cross-linked polymeric binder with an esterification reaction of Sodium Carboxymethyl Cellulose (CMC) and Fumaric Acid (FA), and successfully used it in an Sb2O3 anode for LIBs. Compared with conventional binder polyvinylidene fluoride (PVDF) and CMC, the new cross-linked binder improves the electrochemical stability of the Sb2O3 anode. Specifically, with CMC-FA binder, the battery could deliver ~611.4 mAh g−1 after 200 cycles under the current density of 0.2 A g−1, while with PVDF or CMC binder, the battery degraded to 265.1 and 322.3 mAh g−1, respectively. The improved cycling performance is mainly due to that the cross-linked CMC-FA network could not only efficiently improve the contact between Sb2O3 and conductive agent, but can also buffer the large volume charge of the electrode during repeated charge/discharge cycles.

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