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Hungry Fungi Lithium Batteries Recycle

Author: Source: Datetime: 2016-10-18 17:14:09
FungiIn rechargeable lithium battery for consumer electronics and electric vehicles are being driven by the growing efforts to expand battery recycling, like used in portable solar power generator, mainly to the recovery of lithium, cobalt and other valuable metals.

But the typical battery recycling methods such as smelting acid leaching, a significant drawback: smelting is a high temperature, high energy-consuming process, hazardous waste produced by these two processes.

Thus, the University of South Florida Jeffrey A. Cunningham is looking for recycling lithium batteries more environmentally friendly way. American Chemical Society national meeting in Philadelphia on Sunday, Cunningham reported the study could pave the fungi play a role in future battery recycling methods.

This is done in order to promote the growth of fungal colonies powdery  lifePo4 batteries. As these microorganisms grow, they produce an organic acid and that will help the battery from the leaching of the valuable metal, making easy to isolate further processing.
Work to achieve this goal in South Florida team has identified three conditions for the rapid growth of fungal strains candidates; they multiplied analyzes they produce organic acids; and evaluate the effectiveness of the commercial version of those acid leaching of metal batteries.

Oxalic acid and citric acid, which is less harsh than ordinary inorganic acid can be extracted to 85% lithium, almost half from the cathode cobalt used batteries, according to the data during a session sponsored by the Division of Environmental Chemistry Cunningham presented. In contrast, gluconic acid is either in the extraction of metal invalid.

Acid fungal team now plans to study the effectiveness of the production version to determine how the fungus withstand the extracted metal, and evaluated by the fungus recycle metals economically feasible.

Research presented in this study could "potentially lead to leach metals from lifepo4 48v green revolution solution," Zhang, who attended the meeting comments.

Zhang, in New Jersey Institute of Technology Civil and Environmental Engineering professor pointed out that the process is mainly mimic the natural process of degradation from microorganisms and enzymes in the acid decomposition of waste material plays an important role. He added that this fungus route seems to have wished to avoid the use of harmful compounds, but may be slow kinetics bitter.
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