Manganese Battery Technology
By Michael Montgomery—Exclusive to Manganese Investing News
Batteries are undoubtedly one of the most important markets driving our technological world. The need for batteries in the emerging markets such as electric vehicles, renewable energy and consumer electronics hinges on two factors: the need for high capacity and low cost energy storage. To meet these needs, lithium-manganese batteries mark the next step in technology geared to reduce the cost of energy storage.
In an interview with Manganese Investing News, Jonathan Lee, Battery Technology and Materials Analyst for Byron Capital Markets, discussed manganese batteries and the capabilities of this emerging technology.
The downside of lithium-ionCurrently, the standard for mobile electronics, traditional lithium-ion batteries use cobalt, however, the cobalt component is slowly being replaced. “The lithium-cobalt batteries that are used in laptops and other mobile electronics will not be used in vehicles." said Lee. Lithium-cobalt batteries, as Lee explained, are less cost effective, as cobalt is an expensive metal in relation to others. Furthermore, the performance of subsequent battery technologies surpasses that of the first generation of lithium-ion batteries. The lithium-ion batteries, Lee noted, were impaired by a heat problem. The heat problem associated with the lithium-cobalt batteries in the past has resulted in recalls when some Hewlett-Packard laptop batteries suddenly ruptured, causing fires. Currently, the main market for manganese batteries is the hybrid/electric vehicle. “Lithium-manganese oxide batteries are being used right now in the Chevy Volt and Nissan Leaf,” stated Lee, adding, “One of the major benefits of using these batteries is cost. Manganese is a fairly inexpensive metal, which keep down cost.” Prototype manganese batteries There are other types of batteries utilizing manganese that are still in a developmental phase. “The other type of battery using manganese is the lithium-nickel-manganese-cobalt battery. This is potentially the next generation and the Argonne National Laboratory is working on these,” stated Lee. The Argonne lab has stated that manganese batteries far outperform traditional lithium-ion systems. “[Manganese composite batteries] demonstrate outstanding cycling stability and can be charged and discharged at high rates, making them excellent candidates to replace [lithium-cobalt] for consumer electronic applications and hybrid electric vehicles,” stated Argonne National Laboratory. One of the main obstacles facing electric vehicles is recharging time. Using a standard household plug, the Chevy Volt takes ten hours to charge the battery with a range of only 35 miles. However, researchers at the University of Illinois are developing batteries that have “a charging rate ten to 100 times higher than that of a normal, commercial battery (in one instance, the researchers created a lithium-ion battery that could be 90 percent recharged in two minutes),” according to an article from The Economist. Manganese supply chain Last year, China produced 1.4 million tonnes of manganese. However, “there is only about 34,000 tonnes of electrolytic manganese production outside of China,” stated Lee. This production comes from Manganese Metal Company in South Africa. Lee added, “With electric vehicles, our estimates are by 2020, we see a need for 80-90 thousand tonnes [of manganese] for electric vehicles.” The added demand from electric vehicles is small in comparison to the overall production of manganese. However, there are a few factors to consider in terms of supply and demand fundamentals going forward.
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