Reduction of lead dioxide with oxalic acid to prepare lead oxide as the positive electrode material for lead acid batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (110) ◽  
pp. 108513-108522 ◽  
Author(s):  
Wei Liu ◽  
Beibei Ma ◽  
Fajun Li ◽  
Yan Fu ◽  
Jian Tai ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Electrode Material ◽  
Lead Oxide ◽  
Lead Dioxide ◽  
Positive Electrode ◽  
Lead Acid Batteries ◽  
Positive Electrode Material ◽  
Lead Oxides ◽  
Lead Acid

Sponge-like lead oxides prepared from PbO2can discharge a capacity of 115.2 mA h g−1after 50 cycles at 100 mA g−1.

Lead recovery from spent lead acid battery paste by hydrometallurgical conversion and thermal degradation

2019 ◽  
Vol 38 (3) ◽  
pp. 263-270
Author(s):  
Wenke Liu ◽  
Qingwei Qin ◽  
Dengqi Li ◽  
Guangqiang Li ◽  
Yinjie Cen ◽  
...  
Keyword(s):  
Thermal Degradation ◽  
Lead Oxide ◽  
Lead Dioxide ◽  
Scanning Calorimetry ◽  
Lead Carbonate ◽  
Lead Acid Batteries ◽  
Novel Approach ◽  
Lead Recovery ◽  
Main Component ◽  
Lead Acid

Spent lead paste is the main component in lead-acid batteries reaching end of life. It contains about 55% lead sulphate and 35% lead dioxide, as well as minor amounts of lead oxide. It is necessary to recycle spent lead paste with minimal pollution and low energy consumption instead of the conventional smelting method. In this study, a novel approach involving hydrometallurgical desulphurisation and thermal degradation is developed to recover lead as PbO products from spent lead acid batteries. First, the desulphurisation effects and phase compositions of products with different transforming agents were compared, and the optimum conditions using (NH4)2CO3 as a transforming agent were determined. And then, the thermal degradation processes of both precursors lead carbonate and lead dioxide were investigated to prepare α-PbO, Pb3O4, and β-PbO products in argon and air atmospheres, respectively. Both the desulphurisation precursors and the calcination products were characterised by thermogravimetry and differential scanning calorimetry, X-ray diffraction, and scanning electron microscopy. The results showed that the lead oxide products were prepared, including α-PbO at 450°C in argon, Pb3O4 and β-PbO at 480°C and 620°C in air, respectively.

scholarly journals Positive electrode material in lead-acid car battery modified by protic ammonium ionic liquid

2019 ◽  
Vol 26 ◽  
pp. 100996 ◽  
Author(s):  
Kacper Kopczyński ◽  
Agnieszka Gabryelczyk ◽  
Marek Baraniak ◽  
Bartosz Łęgosz ◽  
Juliusz Pernak ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Electrode Material ◽  
Positive Electrode ◽  
Positive Electrode Material ◽  
Lead Acid

Recycling lead from spent lead pastes using oxalate and sodium oxalate and preparation of novel lead oxide for lead-acid batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (115) ◽  
pp. 94895-94902 ◽  
Author(s):  
Cheng Ma ◽  
Yuehong Shu ◽  
Hongyu Chen
Keyword(s):  
Energy Cost ◽  
Lead Oxide ◽  
Low Energy ◽  
Sodium Oxalate ◽  
Lead Acid Batteries ◽  
Smelting Method ◽  
Lead Acid

A sustainable method, with minimal pollution and low energy cost in comparison with the conventional smelting method, is proposed for treating components of spent lead acid batteries with oxalate and sodium oxalate.

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