Lithium salt of carboxymethyl cellulose as an aqueous binder for thick graphite electrode in lithium ion batteries

The progress of novel binder as a non-ignorable part to improve the performance of Si-based anodes for Li-ion batteries

“…However, the loading of binders should also be decreased to maintain the practical application. Based on studies on conductive-type binders used for graphite anodes, [63][64][65] further research could be focused on conductive Li substituted polymers, which could provide more freely moving Li + . Free Li + could fast transfer from the polymer chains to active materials which could shorten the pathway of Li + to the surface of active materials.…”

Ionically conducting inorganic binders: a paradigm shift in electrochemical energy storage

“…Further, in the recycling of LIBs, PVDF has to burn off for its removal, which is not environmentally benign, contaminates final waste streams, and decreases the value of products 7 . Several eco-friendly and water processable binders have been reported as alternatives to PVDF; among them, sodium carboxymethyl cellulose (NaCMC), sodium polyacrylate (NaPAA), and sodium alginate (NaALG) are in wide use [8][9][10] . NaCMC is used in commercial applications as a binder for graphite 11,12 .…”

Enhanced Electrochemical Properties of LiFePO4 Cathode Using Waterborne Lithiated Ionomer Binder in Li-Ion Batteries with Low Amount

“…Figures and a show the design and structure of the PSBA-Li with more Li + in molecule chains. More Li + could enhance conductivity and transfer at the interface between the cathode and the electrolyte to shorten the distance to LiFePO 4 particle surfaces − to a degree, which is beneficial for cycling and rate performances. Moreover, the limited addition amount of the PSBA-Li can improve the energy density for further application.…”

“…The unlithiated PSBA-H electrodes (Figure b) present obviously low capacities compared to PSBA-Li electrodes for the function of Li + . More Li + could enhance conductivity and shorten the distance to LiFePO 4 particle surfaces. − When rates increased from 0.5C to 2C, capacities of PSBA-Li cathodes decrease due to the poor conductivity of LiFePO 4 cathodes, which hinders the lithiation/delithiation process. The PSBA-Li cathode presents relatively stable cycling performances at various rates compared with PVDF cathodes with rapid capacity fading attributed to weak van der Waals forces. , After 200 cycles, capacity retentions of PSBA-Li electrodes are 108.5%, 103.6%, and 114.9% at the rates of 0.5C, 1C, and 2C, respectively, compared to that of the PSBA-H (1.5%) electrode with 103.9% (0.5C) and the PVDF electrode with 7% (0.5C), which is about 15 times higher.…”