Key Highlights
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A new analytical model reveals that self-discharge in solid-state batteries depends not only on the electronic conductivity of the separator but also on its electrochemical stability. This breakthrough helps understand why batteries lose charge over time, and the model can guide the design of better separators and cells to improve shelf life.
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Researchers created a smart fabric inspired by leaf stomata that opens tiny pores within 5 seconds of exposure to moisture, increasing air permeability by nearly 100% when wet. This fabric can help people stay comfortable during exercise and in changing climates, potentially allowing indoor air-conditioning temperatures to be raised by at least 1°C without sacrificing comfort, which saves energy.
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Ag₂Se is a promising material for turning waste heat into electricity at near-room temperatures because of its high carrier mobility, low thermal conductivity, and low cost. This review highlights how this material could power small electronics or provide solid-state cooling, making energy harvesting more accessible.
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