Ampace, a subsidiary of Amperex Technology and CATL, unveiled a battery cell that can withstand 15,000 charge and discharge cycles at the RE+ show in Las Vegas. Such batteries will be able to accompany solar electricity generation systems throughout the entire service life of solar farms – from 20 to 25 years, which will help reduce the cost of projects and their maintenance by 30% or more.
The Kunlun cell dimensions are 22.5 × 122.7 × 360.5 mm and weighs about 1.8 kg. Its maximum capacity reaches 100 Ah, and the rated voltage is 3.2 V. The declared battery life reaches 20 years or 15,000 recharge cycles. Up to 20,000 cycles, the battery retains about 80% of its original capacity and more than 70% after 20,000 charge and discharge cycles. If the battery performance is confirmed, it will significantly change long-term energy storage systems and buffer storage systems for generating electricity from renewable sources.
“Long-cycle cells provide significant value for global commercial, industrial and residential energy storage systems,” Ampace said. “They enable commercial and industrial energy storage system users to efficiently keep photovoltaic and energy storage systems running at the same pace, and residential energy users can benefit from greater panel peak voltage output, overcoming traditional battery life limitations.”
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