Method and apparatus for flexible battery
View Patent ↗In accordance with an example embodiment of the present invention, an apparatus is disclosed. The apparatus includes a single battery ribbon and vacuum packaging. The single battery ribbon includes a first portion, a second portion, and an interconnecting portion between the first portion and the second portion. The first portion includes a first block. The second portion includes a second block. The first portion, the second portion, and the interconnecting portion form a continuous single layer including an anode and a cathode. The vacuum packaging surrounds the single battery ribbon. The vacuum packaging includes a middle connecting portion configured to contact a first side of the interconnecting portion and a second opposite side of the interconnecting portion.
1. An apparatus, comprising:
a single battery ribbon comprising a first portion, a second portion, and an interconnecting portion between the first portion and the second portion, wherein the first portion comprises a first rolled structure, wherein the second portion comprises a second rolled structure, wherein the first portion, the second portion, and the interconnecting portion form a continuous single layer comprising an anode and a cathode, wherein the interconnecting portion is free of any active material, wherein the first and second rolled structures are configured to be formed by turning the single battery ribbon over itself, wherein the first rolled structure is formed from only the single battery ribbon, and wherein the second rolled structure is formed from only the single battery ribbon, wherein the single battery ribbon further comprises a separator between the anode and cathode, and wherein each of the anode, cathode, and separator of the single battery ribbon are configured to each be physically continuous along substantially an entire longest dimension of the single battery ribbon; and
vacuum packaging surrounding the single battery ribbon, wherein the vacuum packaging comprises a middle connecting portion configured to contact a first side of the interconnecting portion and a second opposite side of the interconnecting portion.
2. An apparatus as in claim 1 wherein the apparatus comprises a mechanical flexure tolerant battery.
3. An apparatus as in claim 1 wherein the first rolled structure and the second rolled structure each comprise a swiss roll structure.
4. An apparatus as in claim 1 wherein the first rolled structure and the second rolled structure each comprise a folded stack structure.
5. An apparatus as in claim 1 wherein the single battery ribbon further comprises N rolled structures and N−1 interconnecting portions, to form the continuous single layer.
6. An apparatus as in claim 1 wherein the middle connecting portion of the vacuum packaging is configured to be compressed together with the interconnecting portion of the single battery ribbon under an evacuation process.
7. An apparatus as in claim 1 wherein the interconnecting portion comprises a narrower width than the first and second rolled structures.
8. An apparatus as in claim 1 wherein the interconnecting portion comprises a smaller cross section than the first portion and the second portion of the single battery ribbon.
9. An apparatus as in claim 1 wherein the rolled structures comprise a general cylindrical shape.
10. An apparatus as in claim 1 wherein the rolled structures comprise a general rectangular shape.
11. An apparatus as in claim 1 wherein the anode of the single battery ribbon comprises a continuous material.
12. An apparatus as in claim 1 wherein the cathode of the single battery ribbon comprises a continuous material.