Miniature vs. conventional battery (IMAGE)

University of Tokyo

Miniature vs. conventional battery

Caption

While a typical 18650 commercial, rechargeable lithium-ion battery has an energy capacity of around 2,800 milliampere hours (mAh), the miniature cylindrical pouch-type cells have a capacity of just 20 mAh or so and require only around 0.1 gram of cathode-active material, a key component of lithium-ion batteries. However, they were still able to accurately perform in full-cell-level ARC tests on a laboratory scale.

Credit

S. Ko and H. Otsuka et al., T. Masuda and A. Yamada 2025 / Nature Energy

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