- Producing hierarchical porous carbon monoliths from hydrometallurgical recycling of spent lead acid battery for application in lithium ion batteries
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In this paper, an environmentally clean process to recycle the paste from a spent lead acid battery (LAB) is further developed in order to produce a porous carbon anode material for a lithium ion battery (LIB) which is currently under increasing focus as the solution for future energy storage and distribution networks. Using lead citrate from hydrometallurgical leaching of lead paste as a precursor, electrochemically active carbon materials were produced as a new product with hierarchical open sponge-like porosity. It was found that anode materials made from porous carbon by pyrolysing lead citrate at 500 °C, with high micropore (3 g-1) and BET surface area (138.5 m2 g-1), showed remarkable reversible capacity values beyond intercalation at both low and high current densities. In particular, at the high current density of 5000 mA g-1 (13.4 C, according to the theoretical capacity of 372 mA h g-1), a high discharge capacity of 217 mA h g-1 was maintained even after 200 cycles, which is much superior in comparison with other carbon materials.
- He, Xiong,Peng, Xiaoyu,Zhu, Yuxuan,Lai, Chao,Ducati, Caterina,Kumar, R. Vasant
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p. 4637 - 4646
(2015/09/15)
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