1460961413-7bc84380-9fab-4240-bfda-5cb2fc434883

1.-7. (canceled)
8. A kit for a counter-current swimming pool for installation in a swimming pool, said swimming pool having first and second opposing boundary walls, each defining a width, with water being pumped into the pool across the entire width of the first boundary wall and being discharged from the pool across the entire width of the opposing second boundary wall in a flow direction, the kit comprising:
a cover plate having a front end and a rear end and defining a depth of a swim space of the swimming pool, said front end and rear end spaced apart from a corresponding adjacent boundary wall by a gap, with water being pumped in and discharged through the respective gap;
one or more boundary walls extending from the cover plate to a floor of the swimming pool and defining flow channels, and
a plurality of axial feed units disposed in a region between the boundary walls, with each axial feed unit having a dedicated drive system,
wherein drive systems are arranged in a space between the cover plate and the floor of the swimming pool, and
wherein the kit is designed as a separate self-contained unit.
9. The kit of claim 8, wherein the axial feed units each comprise a propeller.
10. The kit of claim 8, further comprising parallel or substantially parallel separation walls separating the axial feed units from one another.
11. The kit of claim 8, further comprising deflection units disposed at least in a region of the respective gap where water is pumped in, for deflecting water flow without creating turbulence.
12. The kit of claim 8, further comprising grates having a low flow resistance which cover the respective gaps formed between the front end and the rear end of the cover plate and a corresponding adjacent boundary wall.
13. The kit of claim 8, wherein the kit comprises at least two modules.
14. The kit of claim 8, further comprising at least one sensor for controlling power to the axial feed units.
15. The kit of claim 14, wherein the at least one sensor monitors a position of a swimmer.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A battery used as a structural element in a device in which the battery is incorporated, the battery comprising:
an anode;
a cathode; and
a solid electrolyte;
wherein the combined anode, cathode and solid electrolyte forms a rigid unit and the rigid unit that consists essentially of the anode, the cathode, and the solid electrolyte collectively possesses a compressive stiffness of at least 10 MPa.
2. The battery of claim 1, wherein said combined anode, cathode and solid electrolyte collectively possesses a compressive stiffness of at least 100 MPa.
3. The battery of claim 1, wherein said combined anode, cathode and solid electrolyte possesses a compressive stiffness in the range of 50 MPa to 100 GPa.
4. The battery of claim 1, wherein the combined anode, cathode and solid electrolyte possesses a failure strength of at least 1 MPa.
5. The battery of claim 1, wherein said combined anode, cathode and solid electrolyte possesses a failure strength of at least 10 MPa.
6. The battery of claim 1, wherein said combined anode, cathode and solid, electrolyte possesses a failure strength in the range of 1 MPa to 10 GPa.
7. The battery of claim 1, wherein said battery has an energy density of at least 0.1 Jcc.
8. The battery of claim 1, wherein the solid electrolyte has a stiffness of at least 1 MPa.
9. The battery of claim 1, wherein one of the anode and the cathode has a stiffness of at least 1 MPa.
10. The battery of claim 1, wherein the solid electrolyte has an ionic conductivity of at least 10\u22129 Scm.
11. The battery of claim 1, wherein the solid electrolyte includes a polymer.
12. The battery of claim 11, wherein the polymer is at least partially crosslinked.
13. The battery of claim 12, wherein the polymer comprises from about 25 weight percent comb units to about 75 weight percent comb units.
14. The battery of claim 1, wherein said solid electrolyte comprises oligo(oxyethylene) units.
15. The battery of claim 1, wherein said solid electrolyte-has a compressive stiffness of at least 1 MPa and an ionic conductivity of at least 10\u22129 Scm.
16. The battery of claim 1, wherein the solid electrolyte comprises a body of polymeric material which includes linear resins which form comb polymer segments, and crosslinking monomers which form a continuous network.
17. The battery of claim 16, wherein said linear resins include vinyl esters.
18. The solid electrolyte of claim 17, wherein said vinyl esters comprise vinyl ester derivatives of polyethylene glycol.
19. The solid electrolyte of claim 16, wherein said linear resins comprise acrylate groups or methacrylate groups.
20. The solid electrolyte of claim 19, wherein said linear resins comprise acrylate groups.
21. The solid electrolyte of claim 19, wherein said linear resins comprise methacrylate groups.
22. The battery of claim 1, wherein the solid electrolyte has an ionic conductivity of at least 10\u22127 Scm.
23. A battery used as a structural element in a device in which the battery is incorporated, the battery comprising:
an anode;
a cathode; and
a solid polymer electrolyte that comprises from about 25 weight percent comb units to about 75 weight percent comb units, is a solid at room temperature, has a stiffness of at least 1 MPa and has an ionic conductivity of at least 10\u22129 Scm;
wherein the combined anode, cathode and solid electrolyte forms a rigid unit wherein the rigid unit that consists essentially of the anode, the cathode and the solid electrolyte collectively possesses a compressive stiffness of at least 10 MPa and a failure strength of at least 1 MPa.