# US 2014/0154401 A1 · Method of producing a device having batteries with testing of the operation of the batteries before connecting them electrically

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- Number: US 2014/0154401 A1
- Document ID: US20140154401A1
- Status: Published application
- Kind: A1
- Application number: 14/128,285
- Filed: 2012-06-28
- Published: 2014-06-05
- Earliest claimed: 2011-07-01
- Assignees: Commissariat A L'energie Atomique Aux Energies Alternatives
- Inventors: Raphael Salot; Philipp Achatz; Steve Martin; Sami Oukassi
- Web page: https://patentgrep.com/patent/US20140154401A1

## CPC

- G01R 31/396: Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
- H01M 6/40: Printed batteries {, e.g. thin film batteries}
- H01M 10/0436: {Small-sized flat cells or batteries for portable equipment}
- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- H01M 10/0565: Polymeric materials, e.g. gel-type or solid-type
- H01M 10/0585: of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
- H01M 10/4207: {for several batteries or cells simultaneously or sequentially}
- H01M 50/54: Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
- H01M 10/4285: {Testing apparatus}
- H01M 10/48: Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569)
- H01M 10/482: {for several batteries or cells simultaneously or sequentially}
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

The method of producing a device having batteries includes the following successive steps performed on a support substrate: providing a support substrate including a first electrically conducting layer forming a main surface, simultaneously forming a plurality of batteries on the first electrically conducting layer, testing operation of the plurality of batteries to discriminate between a first group of functional batteries and a second group of defective batteries, forming a second electrically conducting layer electrically insulated from the first electrically conducting layer, the second electrically conducting layer and the first electrically conducting layer being configured to connect only the functional batteries in parallel.

## Claims

### Claim 1

A method for producing a device having batteries, said method comprising the following successive steps:
providing a support substrate comprising a first electrically conducting layer forming a main surface,
simultaneously forming a plurality of batteries on the first electrically conducting layer,
testing operation of the batteries to discriminate between a first group of functional batteries and a second group of defective batteries,
forming a second electrically conducting layer electrically insulated from the first electrically conducting layer, the second electrically conducting layer and the first electrically conducting layer being configured to connect only the functional batteries in parallel.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the plurality of batteries is formed on the first electrically conducting layer, the electrically conducting layer electrically connecting the plurality of batteries.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the plurality batteries are situated in one and the same plane parallel to the support substrate.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the batteries are arranged so as to obtain a filling ratio of the support substrate less than or equal to 40%, the surface of each battery being smaller than or equal to 104 μm2.

### Claim 5 (depends on 1)

The method according to claim 1, wherein each battery of the plurality of batteries comprises a stack comprising a first electrode, an electrolytic membrane, and a second electrode, the first electrode being in electric contact with the first electrically conducting layer.

### Claim 6 (depends on 5)

The method according to claim 5, wherein the testing step is performed by taking, for each battery of the plurality of batteries, a first electric contact on the first electrically conducting layer, and a second electric contact associated with the second electrode of the battery concerned so as to perform electric testing of the battery.

### Claim 7 (depends on 1)

The method according to claim 1, wherein the functional batteries are connected to the first electrically conducting layer and to the second electrically conducting layer, the defective battery being electrically connected to the plus of one of the electrically conducting layers.

### Claim 8 (depends on 1)

The method according to claim 1, wherein a portion of the first electrically conducting layer covered by a defective battery is electrically insulated from another portion of the first electrically conducting layer electrically coupled to the functional batteries, before the deposition step of the second electrically conducting layer.

### Claim 9 (depends on 1)

The method according to claim 1, wherein the second electrically conducting layer is deposited so as to be electrically connected with all the batteries, said second electrically conducting layer being patterned to electrically insulate a portion of the second electrically conducting layer associated with a defective battery of another portion of the second electrically conducting layer common to the functional batteries.

### Claim 10 (depends on 9)

The method according to claim 9, wherein the step of formation of the plurality of batteries comprises deposition of an electrolytic membrane common to all the batteries, said electrolytic membrane electrically insulating the first and second electrically conducting layers between the batteries.

### Claim 11 (depends on 1)

The method according to claim 1, wherein the second electrically conducting layer is deposited only on the functional batteries in order to form a battery device comprising the functional batteries electrically connected in parallel and the defective batteries electrically insulated from the functional batteries.

### Claim 12 (depends on 1)

The method according to claim 1, comprising:
deposition of an electrically insulating layer to cover all the batteries of the plurality of batters,
localized opening of the electrically insulating layer to access the functional batteries only,
deposition of the second electrically conducting layer to connect all the functional batteries through the electrically insulating layer.