Galvanic element

Patent metadata

Field	Value
Publication number	US-2015295274-A1
Application number	US-201514680872-A
Country	US
Kind code	A1
Filing date	Apr 7, 2015
Priority date	Apr 9, 2014
Publication date	Oct 15, 2015
Grant date	—

Abstract

A galvanic element includes the following elements in the order listed: a current collector associated with an anode; the anode; an ion-conducting separator in the form of a continuous layer; a cathode; and a current collector associated with the cathode. The anode encompasses an ion-conducting support structure, and both the ion-conducting support structure and the separator encompasses an ion-conducting material. The ion-conducing support structure is porous.

First claim

What is claimed is:

1 . A galvanic element, comprising, in the following order:
a current collector associated with an anode; the anode; an ion-conducting separator in the form of a continuous layer; a cathode; and a current collector associated with the cathode; wherein the anode encompasses an ion-conducting support structure, both the ion-conducting support structure and the separator encompassing an ion-conducting material, and wherein the ion-conducing support structure is porous.

2 . The galvanic element as recited in claim 1 , wherein the ion-conducting material is a lithium ion-conducting ceramic.

3 . The galvanic element as recited in claim 2 , wherein the ion-conducting material is lithium garnet.

4 . The galvanic element as recited in claim 2 , wherein the separator is manufactured by aerosol coating.

5 . The galvanic element as recited in claim 2 , wherein the cathode includes an ion conductor.

6 . The galvanic element as recited in claim 5 , wherein the ion conductor is a further ion-conducting support structure made of an ion-conducting material which is porous.

7 . The galvanic element as recited in claim 6 , wherein an electrolyte layer which includes a polymer electrolyte is disposed between the separator and the cathode.

8 . The galvanic element as recited in claim 5 , wherein the ion conductor is a liquid electrolyte.

9 . The galvanic element as recited in claim 5 , wherein the ion conductor is a further separator impregnated with a liquid electrolyte.

10 . The galvanic element as recited in claim 5 , wherein the ion conductor is a polymer electrolyte.

11 . The galvanic element as recited in claim 2 , wherein the porosity of the porously configured ion-conducting support structure is between 20 vol % and 90 vol %.

12 . A battery cell, comprising:
a cell housing; and a galvanic element including, in the following order:
a current collector associated with an anode;
the anode;
an ion-conducting separator in the form of a continuous layer;
a cathode; and
a current collector associated with the cathode;
wherein the anode encompasses an ion-conducting support structure, both the ion-conducting support structure and the separator encompassing an ion-conducting material, and wherein the ion-conducing support structure is porous.

Assignees

• Bosch Gmbh Robert

Inventors

• Engel Christine
• Butzin Michael
• Kerkamm Ingo

Classifications

• H01M10/0562 Primary

  Solid materials · CPC title

• H01M10/0565

  Polymeric materials, e.g. gel-type or solid-type · CPC title

• H01M10/058

  Construction or manufacture · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M10/052

  Li-accumulators · CPC title