2018年4月30日 · Lithium substituted polyacrylic acid (LiPAA) has previously been demonstrated as a superior binder over polyacrylic acid (PAA) for Si anodes, but from where does this enhanced performance arise? In this study, full cells are assembled with PAA and LiPAA based Si-graphite composite anodes that dried at temperatures from 100 °C to 200 °C.

In this study, an inexpensive aqueous lithium poly-acrylic acid (LiPAA) binder was developed to deftly solve the shortcomings of the LVP material by tailoring the functional groups in the binder.

2022年7月30日 · Herein, an engineering prelithiation binder strategy based on polyacrylic acid (Li x PAA) is proposed for representative SiO x anodes. The ICEs and cycling lives of SiO x anodes are significantly improved by precisely controlling the lithiation degree of PAA binder.

2020年11月5日 · In this study, we report that the cycling stability of SiMP electrodes can be effectively improved by using environmentally friendly and cost-efficient lithium (Li) substituted poly (acrylic acid) (PAA- x Li, x ≤ 1) as binders.

2024年10月29日 · Poly(acrylic acid) (PAA) and its derivatives have emerged as promising candidates for enhancing the electrochemical performance of lithium-ion batteries (LIBs) as binder materials. Recent research has focused on evaluating their ability to improve adhesion with silicon (Si) particles and facilitate ion transport while maintaining electrode ...

锂取代的聚丙烯酸（LiPAA）先前已被证明是优于Si阳极的聚丙烯酸（PAA）的粘合剂，但是这种增强的性能从何而来呢？ 在这项研究中，将全电池与基于PAA和LiPAA的Si-石墨复合阳极组装在一起，并在100°C至200°C的温度下干燥。 含有PAA基Si-石墨阳极的完整电池的性能在很大程度上取决于二次干燥温度，因为粘合剂的分解与电极湿度的增加和电池阻抗的升高相关。 含LiPAA基Si-石墨复合电极的全电池比含PAA的全电池显示出更好的库仑效率，这是因为PAA粘合剂的电化学 …

2023年8月8日 · 近日，美国杨百翰大学Dean R. Wheeler团队等人发现利用水系PAA与LiOH-PAA粘结剂制成的硅负极的相对循环寿命存在差异，而该差异可能是由于pH值或粘结剂剂中额外的Li+而导致的。 研究表明，当存在额外的Li+时，粘结剂的离子传输性能会有所提升；而粘结剂中较高的pH将对电极的机械完整性（含剥离强度等）有害，但它有利于极片的涂敷和混合过程，循环结果表明使用LiOH-PAA粘结剂能够保持更高的电池容量，且在pH=4.5时电池容量达到最高值。

2010年11月5日 · Herein, we show for the first time that pure poly (acrylic acid) (PAA), possessing certain mechanical properties comparable to those of CMC but containing a higher concentration of carboxylic functional groups, may offer superior performance as a binder for Si anodes.

Here we investigate polyacrylic acid (PAA) and lithium polyacrylate (Li-PAA) polymer binders’ role in the electrochemical performance of silicon nanoparticle based electrodes. The binders are evaluated in comparison to sodium carboxymethyl cellulose (Na-CMC), and polyether imide (PEI).

2017年11月29日 · Here we investigate polyacrylic acid (PAA) and lithium polyacrylate (Li-PAA) polymer binders' role in the electrochemical performance of silicon nanoparticle based electrodes. The binders are evaluated in comparison to sodium carboxymethyl cellulose (Na-CMC), and polyether imide (PEI).