Lithium cells and batteries with improved stability and safety, method for the production thereof, and application in mobile and stationary electrical energy accumulators

1. A battery, comprising an electrolyte and an electrode-separator arrangement at least partly encased with a potting compound, wherein the electrode-separator arrangement, which is situated within a casing formed by the potting compound, is coupled electromagnetically, or electromagnetically and mechanically with an electrical connection, to at least one further functional element selected from the group consisting of a heat sink, control electronics, and an RFID element.

2. The battery of claim 1 , wherein the electrode-separator arrangement has been wound or laid, or has been stacked from at least two unit cells.

3. The battery of claim 1 , wherein the potting compound comprises at least one casting resin selected from the group consisting of a polyurethane, a one-component epoxy resin, a two-component epoxy resin, and a mixture thereof.

4. The battery of claim 1 , wherein output conductors project at least partly out of a casing formed by the potting compound.

5. A process for producing the battery of claim 1 , the process comprising:

(a) securing at least one electrode-separator arrangement;

(b) encasing the at least one electrode-separator arrangement with at least one reactant of a potting compound; and

(c) curing, polymerizing, or both curing and polymerizing, the encased electrode-separator arrangement to obtain a battery,

wherein in (c) a curing and/or polymerizing time of the potting compound is from 0.1 to 200 min, and a temperature is from 10 to 200° C., and

wherein the electrode-separator arrangement, which is situated within a casing formed by the potting compound, is coupled electromagnetically, or electromagnetically and mechanically with an electrical connection, to at least one further functional element selected from the group consisting of a heat sink, control electronics, and an RFID element.

6. The process of claim 5 , further comprising, after the securing (a):

(a2) compacting the at least one electrode-separator arrangement by pressurization with at least one inert gas selected from the group consisting of CO 2 , nitrogen, and a noble gas.

7. An article, comprising the battery of claim 1 , wherein the article is stationary or mobile.

8. A potting compound which at least partly encases at least one electrode-separator arrangement or a composite of electrode-separator arrangements.

9. The battery of claim 1 , wherein the electrode-separator arrangement has been stacked from at least two unit cells arranged in parallel or in series.

10. The battery of claim 1 , wherein the electrode-separator arrangement has been stacked from at least two unit cells arranged in parallel.

11. The battery of claim 1 , wherein the electrode-separator arrangement has been stacked from at least two unit cells arranged in series.

12. The process of claim 5 , comprising:

(c) curing and polymerizing the encased electrode-separator arrangement.

13. The article of claim 7 , wherein the article is at least one selected from the group consisting of a hybrid system on a board motor vehicle, a hybrid system on a motorcycle, a hybrid system on a truck, a hybrid system on a ship, a hybrid system on a machine, an emergency power supply, a wind power generator, a water power generator and a solar power generator.

14. The process of claim 5 , wherein the curing and/or polymerizing time of the potting compound is from 0.2 to 10 min.

15. The process of claim 5 , wherein the curing and/or polymerizing time of the potting compound is from 0.2 to 1 min.

16. The process of claim 5 , a wherein the curing and/or polymerizing temperature is from 20 to 100° C.

17. The process of claim 5 , a wherein the curing and/or polymerizing temperature is from 40 to 80° C.