Back to results
US 2024/0266587 A1Published application
Secondary battery and electronic device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsMinoru TAKAHASHI, Ryota TAJIMA
Life of this patent
Estimating the term…
Abstract
A secondary battery suitable for a portable information terminal or a wearable device is provided. An electronic device having a novel structure which can have various forms and a secondary battery that fits the forms of the electronic device are provided. In the secondary battery, sealing is performed using a film provided with depressions or projections that ease stress on the film due to application of external force. A pattern of depressions or projections is formed on the film by pressing, e.g., embossing.
Claims14
A secondary battery comprising a film,
- wherein the film has a first region with a first type of projections and depressions and a second region with a second type of projections and depressions,
- wherein the second type of projections and depressions is different from the first type of projections and depressions,
- wherein the secondary battery has flexibility,
- wherein the secondary battery is a multi-stable flexible secondary battery having at least a first stable condition and a second stable condition,
- wherein the first stable condition is fixed while being bent,
- wherein the second stable condition is different from the first stable condition,
- wherein the secondary battery deforms repeatedly between the first stable condition and the second stable condition, and
- wherein the first type of projections and depressions comprises a portion having a first thickness and a portion having a second thickness.
5 more elements
A secondary battery comprising a film,
- wherein the film has a first region with a first type of projections and depressions and a second region with a second type of projections and depressions,
- wherein the second type of projections and depressions is different from the first type of projections and depressions,
- wherein the first region and the second region are connected to each other via a boundary,
- wherein the secondary battery has flexibility,
- wherein the secondary battery is a multi-stable flexible secondary battery having at least a first stable condition and a second stable condition,
- wherein the first stable condition is fixed while being bent,
- wherein the second stable condition is different from the first stable condition,
- wherein the secondary battery deforms repeatedly between the first stable condition and the second stable condition, and
- wherein the first type of projections and depressions comprises a portion having a first thickness and a portion having a second thickness.
6 more elements
Dependencies are inferred from the claim text.