“薄膜电池”常见的英文表达是 thin-film battery。
“thin-film”直接对应“薄膜”，强调电池采用薄而平的膜状结构；“battery”表示“电池”。这种表述在科研文献、行业报告以及产品说明中都很常用。例如：
Thin-film batteries have attracted much attention due to their flexibility and lightweight.（薄膜电池因其柔韧性和重量轻而备受关注。）