Interactions between organic additives and active powders in water-based lithium iron phosphate electrode slurries

Three-dimensional embroidered current collectors for ultra-thick electrodes in batteries

“…15 The use of SBR as watersoluble binder in LiFePO 4 cathode material as a substitute of PVdF binder has already been reported in the literature. [16][17][18] The recipe used in this work is based on descriptions in the literature. 19 In future work, the recipes for the cathode will be further optimized.…”

An Effective Mixing for Lithium Ion Battery Slurries

“…Zhang et al [8] studied the effects of adding a non-ionic surfactant on the dispersion of the active material LiFePO 4 , and found that both mixing and discharge capacity could be improved. Li et al [16] studied the effects of adding adhesive and thickener in different steps and found that sequential addition of adhesive and thickener yielded the best mixing results for cathode slurries. For anode slurries, Zheng et al [17] proposed mixing together the carbon black and binders in the solvent first, then using an ultrasonic device for subsequent dispersion.…”

Cyanoethylated Carboxymethyl Chitosan as Water Soluble Binder with Enhanced Adhesion Capability and electrochemical performances for LiFePO4 Cathode

“…active materials, electrolyte and separator, binder is equally important and critical as an inactive material in facilitating electron and ion conductivity, holding the physical structure of electrode and maintaining stable cycling for battery cells [4][5][6][7]. Polyvinylidene fluoride (PVDF) has been successfully applied for cathodes and anodes in the commercial LIBs because of its excellent binding capability and electrochemical stability [8][9][10][11][12][13]. However, PVDF is relatively costly and has to be dissolved in a volatile, flammable, or toxic organic solvents such as N-methyl pyrrolidone (NMP), which imposes serious threat to operators' health and pollution to the environment [14,15].…”

“…Carboxymethyl cellulose salt (Li and Na salt) [20][21][22], polyacrylic acid (PAA) and its neutralized derivatives (PAAX, X=Li, Na and K) [23][24][25][26], styren-butadiene rubber (SBR) [11,14], poly (methyl methacrylate) (PMMA) [10,27], and poly vinyl acetate (PVAc) [28], have been explored as water soluble binders for LFP cathode. These water soluble polymers are superior to the conventional non-aqueous PVDF in improving the electrochemical performances of LFP cathode, especially the rate capability.…”