High-performance LiFePO4/C electrode with polytetrafluoroethylene as an aqueous-based binder

A Review of the Design of Advanced Binders for High‐Performance Batteries

“…It is preferable to replace the most common solvent, NMP, with some recyclable and sustainable alternative, water, for example. Several aqueous polymer binders which are used in the Si‐based electrodes, such as polytetrafluoroethylene (PTFE), [ 123 ] CMC, [ 124 ] PAA, [ 125 ] chitosan, [ 126–128 ] and xanthan gum (XG), [ 129 ] have shown comparable or even better performance than conventional PVDF. Natural cellulose is another feasible binder material, which can be obtained from various plants such as wood and cotton.…”

Use of Ce to Reinforce the Interface of Ni‐Rich LiNi0.8Co0.1Mn0.1O2 Cathode Materials for Lithium‐Ion Batteries under High Operating Voltage

“…[12,13] LiCoO 2 ,L iFePO 4 , and LiNi x Co y M z O 2 (x + y + z = 1, M = Mn/Al) as cathodes for rechargeable lithium-ion batteries have successively helped them dominate the market. [16] Nowadays, LiNi x Co y Mn z O 2 (x + y + z = 1) oxidesw ith nickel contentsl ess than 60 %a re fully commercialized. [15] LiFePO 4 has been abundantly applied as ac athode materialinelectric vehicles owing to its low cost, good environmental compatibility, and excellent safety,a lthough it is gradually being replacing by ternary materials on account of its inferior electronic conductivitya nd lower capacity compared with ternary materials.…”

“…[15] LiFePO 4 has been abundantly applied as ac athode materialinelectric vehicles owing to its low cost, good environmental compatibility, and excellent safety,a lthough it is gradually being replacing by ternary materials on account of its inferior electronic conductivitya nd lower capacity compared with ternary materials. [16] Nowadays, LiNi x Co y Mn z O 2 (x + y + z = 1) oxidesw ith nickel contentsl ess than 60 %a re fully commercialized. Ni-richc athode materials LiNi x Co y Mn z O 2 (x + y + z = 1, x!0.6) have higher gravimetric energy density,w hich makes them one of the mostp romising candidates for nextgeneration commercial cathode materials.…”

Investigation on xanthan gum as novel water soluble binder for LiFePO 4 cathode in lithium-ion batteries

“…Among various aqueous polymeric binder demonstrated so far, polyacrylic acid (PAA) and its neutralized salts (PAALi, PAANa and PAAK) [5][6][7][8], chitosan and its derivatives (CTS, CCTS and CN-CCTS) [9][10][11], lithium or sodium salts of carboxymethyl cellulose (CMCLi, CMCNa) and its composite binder (CMC-PEDOT:PSS) [12,13], styrene-butadiene rubber (SBR) [7], poly vinyl acetate (PVAc) [14] and polytetrafluoroethylene (PTFE) [15] have been employed and studied for LFP cathode, which are superior to the conventional PVDF in battery performances such as either promoting the cycle stability or enhancing the rate capability. Besides the water-soluble binders mentioned above, some NMP-based binders such as polyaniline (PANI) [16], poly(methyl methacrylate) (PMMA) [17], poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP) [18], and sodium alginate functionalized with 3,4-propylenedioxythiophene-2,5-discarboxylic acid (SA-PProDOT) [19] for LFP cathode were also investigated.…”