Study on electrochemical properties of gelled electrolytes using nano fumed silica in the presence of some organic additives

Anh, Nguyễn Thị Vân; Thuy, Mai Thi Thanh; Xuan, Mai Thi; Binh, Pham Thanh

doi:10.1504/ijnt.2020.111331

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the past 30 years, different solutions (such as lighter grid materials, additives for pastes and/or electrolytes, bipolar plates, and gelled electrolytes) have been tested to improve LABs performances [4,[19][20][21][22][23]. However, the best solution proposed to date concerns the use of carbon additives for negative plates [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Lead Electrodes with Reduced Graphene Oxide for High-Performance Lead–Acid Batteries

et al. 2022

View full text Add to dashboard Cite

Nanostructured Pb electrodes consisting of nanowire arrays were obtained by electrodeposition, to be used as negative electrodes for lead–acid batteries. Reduced graphene oxide was added to improve their performances. This was achieved via the electrochemical reduction of graphene oxide directly on the surface of nanowire arrays. The electrodes with and without reduced graphene oxide were tested in a 5 M sulfuric acid solution using a commercial pasted positive plate and an absorbed glass mat separator in a zero-gap configuration. The electrodes were tested in deep cycling conditions with a very low cut-off potential. Charge–discharge tests were performed at 5C. The electrode with reduced graphene oxide outperformed the electrode without reduced graphene oxide, as it was able to work with a very high utilization of active mass and efficiency. A specific capacity of 258 mAhg−1–very close to the theoretical one–was achieved, and the electrode lasted for more than 1000 cycles. On the other hand, the electrode without reduced graphene oxide achieved a capacity close to 230 mAhg−1, which corresponds to a 90% of utilization of active mass.

show abstract