The present invention relates to a process for producing a protected lithium anode for a lithium ion battery, wherein the protected lithium anode comprises metallic lithium and at least one alloy, and the present invention also relates to a process for producing an electrochemical cell comprising as
The present invention relates to a process for producing a protected lithium anode for a lithium ion battery, wherein the protected lithium anode comprises metallic lithium and at least one alloy, and the present invention also relates to a process for producing an electrochemical cell comprising as one production step said process for producing said protected lithium anode.
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1-10. (canceled) 11. A process for producing a protected lithium anode, wherein the protected lithium anode comprises (A1) metallic lithium and(A2) at least one alloy of formula (I), LixM (I)wherein x is in a range of 1 to 5, andM is an element selected from the group consisting of P, As, In, Bi an
1-10. (canceled) 11. A process for producing a protected lithium anode, wherein the protected lithium anode comprises (A1) metallic lithium and(A2) at least one alloy of formula (I), LixM (I)wherein x is in a range of 1 to 5, andM is an element selected from the group consisting of P, As, In, Bi and Zn, andwherein the process comprises(a) contacting, in total or in part, a metallic surface of a body comprising metallic lithium with a liquid mixture comprising(C1) a compound of formula (II), Mn+Am−y (II)wherein M is an element selected from the group consisting of P, As, In, Bi and Zn,n is an integer from 2 to 5,A is a monoatomic or polyatomic group,m is an integer from 1 to 3, andy is equal to a ratio of n to m, and(b) removing an excess of the liquid mixture or a lithium salt of formula (III) Li+mAm− (III)wherein m and A are defined as in formula (II),wherein the contacting has a duration of 5 sec to 2 min andwherein a formation of (A2) by a reaction of (A1) with (C1) in (a) is an electroless deposition or electroless plating of M, which further instantaneously reacts with additional lithium to (A2). 12. The process of claim 11, wherein the protected lithium anode is covered, in total or in part, with a layer of (A2). 13. The process of claim 12, wherein the layer has a thickness in a range of 1 to 100 μm. 14. The process of claim 11, wherein a mass ratio of (A1) to (A2) is in a range of 10 to 60 based on a total mass of the protected lithium anode. 15. The process of claim 11, wherein the body comprising metallic lithium is a foil. 16. The process of claim 11, wherein a mass fraction of (A1) is in a range of 0.9 to 1 based on a total mass, before contacting, of the body comprising metallic lithium. 17. The process of claim 11, wherein a mass fraction of (C1) is in a range of 0.01 to 0.15 based on a total mass of the liquid mixture. 18. The process of claim 11, wherein the contacting occurs at a temperature in a range of −108 to 70° C. 19. A process for producing an electrochemical cell comprising a protected lithium anode, the process comprising producing a protected lithium anode with the process of claim 11 andincorporating the protected lithium anode in the electrochemical cell. 20. The process of claim 11, wherein a sum of a mass fraction of (A1) and a mass fraction of (A2) is in a range of 0.95 to 1 based on a total mass of the protected lithium anode, wherein the total mass disregards any current collectors or wires.
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