GB2249213A - A battery - Google Patents
A battery Download PDFInfo
- Publication number
- GB2249213A GB2249213A GB9004958A GB9004958A GB2249213A GB 2249213 A GB2249213 A GB 2249213A GB 9004958 A GB9004958 A GB 9004958A GB 9004958 A GB9004958 A GB 9004958A GB 2249213 A GB2249213 A GB 2249213A
- Authority
- GB
- United Kingdom
- Prior art keywords
- battery
- layer
- electrode
- multilayer composite
- electrically
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Primary Cells (AREA)
Abstract
A battery comprising at least one electrochemical cell in which the, or each of the, electrochemical cells includes a bipolar multilayer composite electrode member (5), which member has a layered structure comprising: - a positive electrode material (6) deposited on an electrically @ conducting foil member (7); - an electrically insulating layer (8); - an electrically conducting layer (9); and - a negative electrode (10); wherein the bipolar multilayer electrode member is formed as a single unit (5). <IMAGE>
Description
A BATTERY
This invention relates to a battery having at least one electrochemical cell and, in particular, a battery having at least one electrochemical cell which includes a multilayer bipolar composite electrode.
In accordance with the present invention, a battery comprises at least one electrochemical cell in which the, or each of the, electrochemical cells includes a bipolar multilayer composite electrode member, which member has a layered structure comprising:
- a positive electrode material deposited
on an electrically conducting foil
member;
- an electrically insulating layer;
- an electrically conducting layer; and - a negative electrode; wherein the bipolar multilayer electrode member is formed as a single unit.
In one form of battery made in accordance with the present invention the, or each, electrochemical cell also includes a liquid electrolyte material.
In a particular form of the present invention including liquid electrolyte material, the bipolar multilayer electrode member is wound together with a separate sheet of separator material to form a core member which is at least partially immersed in the liquid electrolyte material.
Alternatively, in a battery including liquid electrolyte material the bipolar multilayer electrode member is folded to form a core member which is at least partially immersed in the liquid electrolyte material.
In a second form of battery made in accordance with the present invention, the or each electrochemical cell includes solid electrode material which is disposed so that in the formed battery the solid electrolyte material is disposed between the positive and negative electrode.
In one particular arrangement of this form of battery the solid electrolyte material and the bipolar multilayer composite electrode member are wound together to form the core member.
Preferably, the negative electrode is formed from lithium metal or a lithium alloy.
Preferably, the electrically conducting layer is a vapour deposited layer of metal, for example vapour deposited copper or nickel. Alternatively a simple foil, for example copper or nickel, member may be used.
The electrically insulating layer may be formed from any suitable material for example, Aluminium
Oxide, Polyester material, Polypropylene,
Polyethylene or a fluoro-polymer (e.g. 'Tefzel').
Preferably, the electrically conducting foil member onto which the positive electrode material is deposited is Aluminium foil.
A battery made in accordance with the present invention may be a primary or secondary battery.
In a specific example of the present invention, the bipolar multilayer composite electrode member has a layered structure as follows:
- a Manganese Dioxide positive electrode
which is deposited on an electrically
conducting aluminium foil member;
- an electrically insulating layer;
- a copper or nickel foil member; and - a lithium metal or lithium alloy
negative; wherein the layers are formed as a unitary member.
The invention will now be illustrated by way of description of an example with reference to the accompanying drawings, in which:
Figure 1 shows a schematic representation of
a battery made in accordance with
the present invention; and Figure 2 shows a schematic representation of
bipolar multilayer composite
electrode member incorporated in a
battery as shown in Figure 1.
Now referring to the drawings, a battery made in accordance with the present invention comprises:
- a casing 1 which forms the negative
terminal of the battery;
- a cap member 2 which forms the positive
terminal of the battery;
- a sealing member 3 which in addition to
sealing the internal atmosphere of the
battery from the external atmosphere, is
positioned to electrically insulate the
negative terminal from the positive
terminal and vice-versa;
- liquid electrolyte material 4 sealed
within the casing 1; and - a wound core member 5 positioned and
sealed within the casing 1.
The wound core member 5 comprises a multilayer composite electrode which is wound together with a thin sheet of separator material.
The multilayer composite electrode comprises a five layered structure, in which the layers are made up as follows:
- a first layer 6 which comprises the
positive electrode;
- a second layer 7 onto which the first
layer 6 is deposited and which comprises
a foil member;
- a third layer 8 which comprises an
electrically insulating layer;
- a fourth layer 9 which comprises an
electrically conducting layer; and - a fifth layer 10 which comprises the
negative electrode.
In one particular example the multilayer composite electrode comprises:
- a first layer 6 cf Manganese Dioxide
(MnO2) with Carbo- Black binder of
between 100 and 20 microns thickness;
- a second layer 7 of aluminium foil of
between 9 and 18 macrons thickness;
- a third layer 8 o- aluminium oxide of
between 5 and 10 microns thickness;
- a fourth layer 9 of vapour deposited
metal for example, copper or nickel of
approximately 1 micron thickness; and - a fifth layer 10 of lithium metal or
lithium alloy of between 30 and 60
microns thickness.
This multilayer composite electrode is bipolar in nature, and has a total thickness of between 100 and 300 microns.
For assembly into the battery the multilayer composite electrode is wound with the negative electrode 10 facing inwardly with a sheet of separator material in order to form the core of the battery. The multilayer composite electrode is wound in this configuration because the lithium metal or lithium alloy forming the layer 10 is more likely to deform than the Manganese Dioxide (MnO2) layer 6, which would crumble, under the forces induced by winding.
In an alternative configuration the multilayer composite electrode may be folded, and then placed in the electrolyte material.
Claims (1)
1. A battery comprising at least one electrochemical cell in which the, or each of the, electrochemical cells includes a bipolar multilayer composite electrode member, which member has a layered structure comprising:
- a positive electrode material deposited
on an electrically conducting foil
member;
- an electrically insulating layer;
- an electrically conducting layer; and - a negative electrode;
.-.Awherein the bipolar multilayer electrode member is formed as a single unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9004958A GB2249213A (en) | 1990-03-06 | 1990-03-06 | A battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9004958A GB2249213A (en) | 1990-03-06 | 1990-03-06 | A battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9004958D0 GB9004958D0 (en) | 1990-05-02 |
| GB2249213A true GB2249213A (en) | 1992-04-29 |
Family
ID=10672061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9004958A Withdrawn GB2249213A (en) | 1990-03-06 | 1990-03-06 | A battery |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2249213A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4091184A (en) * | 1977-08-19 | 1978-05-23 | The United States Of America As Represented By The Secretary Of The Air Force | High power, rechargeable, pile type silver zinc battery |
| EP0239343A2 (en) * | 1986-03-24 | 1987-09-30 | Ensci, Inc. | Battery element and battery incorporating doped tin oxide coated substrate |
-
1990
- 1990-03-06 GB GB9004958A patent/GB2249213A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4091184A (en) * | 1977-08-19 | 1978-05-23 | The United States Of America As Represented By The Secretary Of The Air Force | High power, rechargeable, pile type silver zinc battery |
| EP0239343A2 (en) * | 1986-03-24 | 1987-09-30 | Ensci, Inc. | Battery element and battery incorporating doped tin oxide coated substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9004958D0 (en) | 1990-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |