This method has the advantage of reducing dimensions and input data and has a higher computational accuracy than FEM.

与有限元法相比，该法具有降维、需要准备数据少、计算精度高等优点。

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"Batteries are particularly challenging because, unlike electronics, it's difficult to scale down their dimensions without significantly reducing performance, " said senior author of the study John Rogers of the University of Illinois at Urbana-Champaign.

BBC: Stretchy battery drawn to three times its size