GB2535496A - Electric battery assembly - Google Patents

Electric battery assembly Download PDF

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Publication number
GB2535496A
GB2535496A GB1502730.3A GB201502730A GB2535496A GB 2535496 A GB2535496 A GB 2535496A GB 201502730 A GB201502730 A GB 201502730A GB 2535496 A GB2535496 A GB 2535496A
Authority
GB
United Kingdom
Prior art keywords
shock
assembly according
batteries
battery
array
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Withdrawn
Application number
GB1502730.3A
Other versions
GB201502730D0 (en
Inventor
Akhmad Mohammed-Asif
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAE Systems PLC
Original Assignee
BAE Systems PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BAE Systems PLC filed Critical BAE Systems PLC
Priority to GB1502730.3A priority Critical patent/GB2535496A/en
Publication of GB201502730D0 publication Critical patent/GB201502730D0/en
Priority to PCT/GB2016/050386 priority patent/WO2016132119A1/en
Priority to EP16706401.3A priority patent/EP3259788B1/en
Priority to US15/548,622 priority patent/US10211431B2/en
Publication of GB2535496A publication Critical patent/GB2535496A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
    • H01M50/109—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure of button or coin shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/216—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for button or coin cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/579—Devices or arrangements for the interruption of current in response to shock
    • 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
    • Y02E60/10—Energy storage using batteries

Abstract

An electric battery assembly 100 comprises a plurality of electric batteries 10 arranged in an array, an interconnection 40, 50 for connecting batteries in the array to provide a common power output L, and a plurality of shock absorbent housings 20, wherein each electric battery is provided within a shock absorbent housing. The shock absorbent housing 20 may have the form of a blister, which may be flexible and which may be filled with a shock-mitigating material 24, such as air or a shear-thickening material. The shock absorbent housings 20 may be affixed to conductive flexible substrates 40, 50, which may be in the form of a mesh and provide the electrical interconnection. This arrangement is particularly useful in providing a planar flexible array of button cell batteries, which are resistant to shocks or impacts.

Description

Intellectual Property Office Application No. GII1502730.3 RTM Date:13 January 2016 The following terms are registered trade marks and should be read as such wherever they occur in this document: KevlarTM -page 3 Intellectual Property Office is an operating name of the Patent Office www.gov.uk /ipo -1 -
ELECTRIC BATTERY ASSEMBLY
The present invention relates to an electric battery assembly.
Typically an electric battery is provided as a monolithic device and/or provided in a rigid housing. Accordingly typical batteries represent a single point of failure.
According to the present invention there is provided an electric battery assembly comprising: a plurality of electric batteries arranged in an array, an interconnection for connecting batteries in the array to provide a common power output; a plurality of shock absorbent housings, wherein each electric battery is provided within a shock-absorbent housing.
The shock absorbent housing may have the form of a blister, which may be flexible and which may be filled with a shock-mitigating material. Such shock-mitigating material may comprise air and/or may comprise a shear-thickening fluid and/or may comprise a hard resin.
Typically the shock absorbent housings are affixed to a flexible substrate, which may be formed from a reinforced composite.
The array of batteries may be arranged in a substantially planar form and the interconnection comprises: a first conductive member suspended over the array of batteries; a second conductive member suspended under the array of batteries, wherein for each battery there is provided a first connection extending between a positive electrode of the battery and the first conductive member and for each battery there is provided a second connection extending between a negative electrode of the battery and the second conductive member.
Where such interconnections are provided, the first conductive member may be in the form of a sheet laid onto and substantially conformal with a first surface defined by the plurality of shock-absorbent housings, and the second conductive layer may be in the form of a sheet laid onto and substantially conformal with a second surface of a second surface defined by the plurality of shock-absorbent housings. -2 -
There may be a single battery provided in each shock-absorbent housing.
Where shock absorbent housings are affixed to the flexible substrate, the shock absorbent housings may taper as they extend from the flexible substrate 5 and be separated from one another to permit flexion. In such circumstances, the shock absorbent housings may have a substantially hemi-spherical form.
Each of the plurality of batteries may have a substantially planar form, such as a disc.
At least one of the first or second conductive members may be a mesh.
As such, there can be provided a flexible, or in other words deformable, power source which may be applied to surfaces to match the contours of that surface.
As such there can be provided a power source where localised damage need not render the entire supply inoperable.
So that the invention may be better understood, an embodiment shall now be described with reference to the following figures, of which: Figure 1 shows schematically an electric battery assembly according to the present invention and connected to an electrical load; Figure 2 shows a perspective computer generated image view of an electric battery assembly according to the present invention; Figure 3 shows a cut-away view of the assembly shown in Figure 2.
An electric battery assembly 100 has a substantially planar form and comprises a plurality of electrical batteries 10. The plurality of electrical batteries are arranged as an array within the plane defined by the assembly 100.
Each battery cell 10 may be of the 'button' or 'coin' variety (i.e. having the form of a disc, and e.g. as shown each being substantially coplanar or at least parallel with each other and the general plane of the assembly 100) and rated 3V-9V. (Other embodiments of the invention may comprise batteries with ratings higher than 9V.) Each battery comprises a negative electrode 14 and a -3 -positive electrode 12. In the present embodiment, the orientation of each battery is identical with respect to the plane defined by the assembly 100. That is to say, all of the positive electrodes 12 are at one side or surface of the array (the upper side as shown in the figures), and all of the negative electrodes 14 are on the other side or surface of the array (the lower side as shown in the figures).
The assembly also comprises a plurality of shock absorbing housings 20 affixed to a substrate 30. The substrate 30 has the form of a flexible sheet of dielectric material.
The flexible substrate 30 may comprise a reinforced composite such as glass fibre reinforced polymer or Kevlar TM.
Each of the shock absorbing housings comprise a chamber formed by a blister or pouch 22 which houses a battery 10 and also a shock mitigating material 24.
Each blister 22 is separated from other blisters and has a tapering form, in this instance a hemisphere. As such, the array of blisters 22 tend not to abut one another until significant curvatures are applied; thus the array of blisters 22 does not tend to interrupt flexion.
The positive electrodes 12 of the batteries 10 are connected to a common positive electrode 40 which has the form of a sheet of conductive mesh. Other conductive sheets of material may be suitable for use as a conductive member for the common positive electrode 40, provided that the flexibility is appropriate.
A first connection 41 extends upwards (with respect to the figure) from the positive electrode of each battery 10 through the shock mitigating material 24, through the blister 22 and onto the common electrode 40. Thus the connection 41 electrically connects the positive electrode 12 of each battery 10 to the common positive electrode 40.
Optionally, and as shown in Figure 3, a further electrical unit 60 may be electrically interposed between the common positive electrode 40 and the first connection 41. Such a further unit could comprise surge protection circuitry, or a -4 -fuse. Alternatively or additionally, such unit 60 could comprise components for monitoring and reporting the electrical characteristics (such as remaining charge) of the associated battery cell. In other embodiments, such components could be integrated into the blister otherwise. Accordingly, the provisions for managing and operating a partially damages are increased.
The negative electrodes 14 of the batteries 10 are connected to a common negative electrode 50 which has the form of a sheet of conductive mesh. Other conductive sheets of material may be suitable for use as a conductive member for the common positive electrode 50, provided that the flexibility is appropriate.
A second connection 51 extends downwards (with respect to the figure) from the negative electrode 14 of each battery 10 through the shock mitigating material 24, through the flexible substrate 30 and onto the common electrode 50. Thus the connection 51 electrically connects the negative electrode 14 of each battery 10 to the common negative electrode 50.
It will be appreciated by the skilled man that the assembly 100 effectively connects the plurality of batteries 10 in parallel. Thus the battery assembly 100 may be used to drive an electrical load L with direct current by connecting the load L between the common positive electrode 40 and the common negative electrode 50.
In operation, the assembly may operate as a portable power supply and be provided as a continuous sheet of material, as shown in figure 2, for integration with portable electrical devices.
The flexibility of the assembly 100 enables it to be applied conformally to surfaces, i.e. with reduced impact on the design of the device which bears the assembly.
The redundancy of the assembly 100 enables it to operate despite areas of damage, e.g. if area D of Figure 2 were to be rendered inoperable, the assembly 100 would still function to supply power from the remaining 30 undamaged portions. -5 -

Claims (14)

  1. CLAIMS1. An electric battery assembly comprising: A plurality of electric batteries arranged in an array, An interconnection for connecting batteries in the array to provide a common power output A plurality of shock absorbent housings Wherein each electric battery is provided within a shock-absorbent housing.
  2. 2. An assembly according to claim 1 wherein the shock absorbent housing has the form of a flexible blister.
  3. 3. An assembly according to claim 2 wherein the flexible blister is filled with a shock-mitigating material.
  4. 4. An assembly according to claim 3 wherein the shock-mitigating material comprises air.
  5. 5. An assembly according to claim 3 wherein the shock-mitigating material comprises a shear-thickening fluid.
  6. 6. An assembly according to any one of the preceding claims wherein the shock absorbent housings are affixed to a flexible substrate.
  7. 7. An assembly according to claim 6 wherein the flexible substrate is formed from reinforced composite.
  8. 8. An assembly according to any one of the preceding claims wherein the array of batteries is arranged in a substantially planar form and the interconnection comprises a. A first conductive member suspended over the array of batteries b. A second conductive member suspended under the array of batteries -6 -Wherein for each battery there is provided a first connection extending between a positive electrode of the battery and the first conductive member and For each battery there is provided a second connection extending between a negative electrode of the battery and the second conductive member.
  9. 9. An assembly according to claim 8 wherein the first conductive member is in the form of a sheet laid onto and substantially conformal with a first surface defined by the plurality of shock-absorbent housings, and wherein the second conductive layer is in the form of a sheet laid onto and substantially conformal with a second surface of a second surface defined by the plurality of shock-absorbent housings.
  10. 10. An assembly according to any one of the preceding claims wherein there is a single battery provided in each shock-absorbent housing.
  11. 11.An assembly according to any one of claims 6 to 10 wherein the shock absorbent housings taper as they extend from the flexible substrate and are separated to permit flexion.
  12. 12.An assembly according to claim 11 wherein the shock absorbent housings have a substantially hemi-spherical form.
  13. 13. An assembly according to any one of the preceding claims wherein each of the plurality of batteries has a substantially planar form.
  14. 14. An assembly according to any one of claims 9 to 13 wherein at least one of the first or second conductive members is a mesh.
GB1502730.3A 2015-02-18 2015-02-18 Electric battery assembly Withdrawn GB2535496A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1502730.3A GB2535496A (en) 2015-02-18 2015-02-18 Electric battery assembly
PCT/GB2016/050386 WO2016132119A1 (en) 2015-02-18 2016-02-17 Electric battery assembly
EP16706401.3A EP3259788B1 (en) 2015-02-18 2016-02-17 Electric battery assembly
US15/548,622 US10211431B2 (en) 2015-02-18 2016-02-17 Electric battery assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1502730.3A GB2535496A (en) 2015-02-18 2015-02-18 Electric battery assembly

Publications (2)

Publication Number Publication Date
GB201502730D0 GB201502730D0 (en) 2015-04-01
GB2535496A true GB2535496A (en) 2016-08-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB1502730.3A Withdrawn GB2535496A (en) 2015-02-18 2015-02-18 Electric battery assembly

Country Status (1)

Country Link
GB (1) GB2535496A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209091A (en) * 1978-08-10 1980-06-24 Gould Inc. Button cell package and method of making same
JP2001307704A (en) * 2000-04-24 2001-11-02 Yuasa Corp Fixing structure of film package battery
WO2012132186A1 (en) * 2011-03-31 2012-10-04 パナソニック株式会社 Battery module and manufacturing method therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209091A (en) * 1978-08-10 1980-06-24 Gould Inc. Button cell package and method of making same
JP2001307704A (en) * 2000-04-24 2001-11-02 Yuasa Corp Fixing structure of film package battery
WO2012132186A1 (en) * 2011-03-31 2012-10-04 パナソニック株式会社 Battery module and manufacturing method therefor

Also Published As

Publication number Publication date
GB201502730D0 (en) 2015-04-01

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