| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte cell with high accuracy, excellent airtightness, and good workability at manufacture. SOLUTION: A small-sized lithium cell with high accuracy, excellent airtightness, and good workability at manufacture, without slippage of a gasket when mounting, is obtained by laminating and integrally molding a gasket 8 made of a synthetic polymer resin film and a positive electrode metal case 7. A biodegradable synthetic polymer resin film, especially a polyvinyl alcohol film, is recommendable as a synthetic polymer resin film. By using this film, the danger of environmental pollution is eliminated because the film is quickly decomposed when discarded as a used cell. |
