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How small particles can bring big changes to the world of batteries.
With the advent of variable renewable energy sources and the growing popularity of electric vehicles, the demand for efficient energy storage systems is growing. In this regard, lithium-sulfur batteries (LSBs), which can store 3 to 5 times more energy than traditional lithium-ion batteries, represent a promising solution.
However, the combination of lithium and sulfur in the battery faces the problem of the "shuttle effect", when intermediate compounds during the operation of the battery cause its wear and decrease in capacity. Attempts to solve this problem using various methods have not yet led to an optimal result.
However, a recent study conducted by a team of scientists from Japan and China, led by Professor Yuichi Negishi of the Tokyo University of Sciences, has opened up the potential of metal nanoclusters in the LSB. The researchers used nanoclusters consisting of platinum and gold as a highly efficient electrocatalyst in the LSB.
These nanoclusters allowed the development of a special separator that improved the chemical reactions in the battery. Thanks to this, the new battery has demonstrated excellent capacity and resistance to charge-discharge cycles. It showed a capacity of 1535.4 mAh / g at the first cycle and 887 mAh / g at a load of 5A/g.
The benefits of using metal nanoclusters include improved energy consumption, longer service life, and less environmental impact. "LSBs with metal nanoclusters can find applications in electric vehicles, portable electronics and other industries," says Professor Negishi.
In the near future, this technology can lead to more durable and cost-effective energy storage devices, which in turn will help reduce carbon emissions and promote the introduction of renewable energy.
With the advent of variable renewable energy sources and the growing popularity of electric vehicles, the demand for efficient energy storage systems is growing. In this regard, lithium-sulfur batteries (LSBs), which can store 3 to 5 times more energy than traditional lithium-ion batteries, represent a promising solution.
However, the combination of lithium and sulfur in the battery faces the problem of the "shuttle effect", when intermediate compounds during the operation of the battery cause its wear and decrease in capacity. Attempts to solve this problem using various methods have not yet led to an optimal result.
However, a recent study conducted by a team of scientists from Japan and China, led by Professor Yuichi Negishi of the Tokyo University of Sciences, has opened up the potential of metal nanoclusters in the LSB. The researchers used nanoclusters consisting of platinum and gold as a highly efficient electrocatalyst in the LSB.
These nanoclusters allowed the development of a special separator that improved the chemical reactions in the battery. Thanks to this, the new battery has demonstrated excellent capacity and resistance to charge-discharge cycles. It showed a capacity of 1535.4 mAh / g at the first cycle and 887 mAh / g at a load of 5A/g.
The benefits of using metal nanoclusters include improved energy consumption, longer service life, and less environmental impact. "LSBs with metal nanoclusters can find applications in electric vehicles, portable electronics and other industries," says Professor Negishi.
In the near future, this technology can lead to more durable and cost-effective energy storage devices, which in turn will help reduce carbon emissions and promote the introduction of renewable energy.
