CA3007843C - Battery with variable electrochemical cells configuration - Google Patents

Battery with variable electrochemical cells configuration Download PDF

Info

Publication number
CA3007843C
CA3007843C CA3007843A CA3007843A CA3007843C CA 3007843 C CA3007843 C CA 3007843C CA 3007843 A CA3007843 A CA 3007843A CA 3007843 A CA3007843 A CA 3007843A CA 3007843 C CA3007843 C CA 3007843C
Authority
CA
Canada
Prior art keywords
electrochemical cell
electrochemical
electrochemical cells
lithium battery
cells
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.)
Active
Application number
CA3007843A
Other languages
French (fr)
Other versions
CA3007843A1 (en
Inventor
Frederic Cotton
Cedric Reboul-Salze
Patrick Leblanc
Thierry Guena
Alain Vallee
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.)
Blue Solutions Canada Inc
Original Assignee
Blue Solutions Canada Inc
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 Blue Solutions Canada Inc filed Critical Blue Solutions Canada Inc
Publication of CA3007843A1 publication Critical patent/CA3007843A1/en
Application granted granted Critical
Publication of CA3007843C publication Critical patent/CA3007843C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
    • C07C37/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
    • C07C39/12—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings
    • C07C39/15—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings with all hydroxy groups on non-condensed rings, e.g. phenylphenol
    • C07C39/16—Bis-(hydroxyphenyl) alkanes; Tris-(hydroxyphenyl)alkanes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643—Cylindrical cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/02—Sulfur, selenium or tellurium; Compounds thereof
    • C07C2527/03—Acids of sulfur other than sulfhydric acid or sulfuric acid, e.g. halosulfonic acids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0065—Solid electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0065—Solid electrolytes
    • H01M2300/0082—Organic polymers
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Secondary Cells (AREA)
  • Primary Cells (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

A lithium battery comprising a plurality of electrochemical cells assembled together which are inserted m a rigid casing having side walls and upper and lower walls forming an enclosure, and at least one heat sink path to dissipate excess heat generated by the electrochemical cells, the electrochemical cells are assembled such that the electrochemical cells positioned adjacent to the heat sink path have a different configuration than the other electrochemical cells of the battery

Description

BATTERY WITH VARIABLE ELECTROCHEMICAL CELLS CONFIGURATION
FIELD OF THE INVENTION
[0001] The present invention relates to a lithium polymer battery operating at temperatures and more specifically to a battery having electrochemical cells configurations adapted to manage these operating temperatures.
BACKGROUND OF THE INVENTION
[0002] Lithium polymer batteries are typically built as large format batteries of 20kWh or more for use in electric vehicle, in stationary applications for back-up to ensure continuity to applications that cannot afford a grid power outage such as telecommunication stations, data centers, etc., or to provide alternate power source for peak shaving purposes in industrial or residential buildings.
[0003] Lithium polymer batteries consist of a plurality of electrochemical cells connected in series enclosed in a rigid casing which protect the electrochemical cells. Each electrochemical cell includes a plurality of elementary cell laminates connected in parallel. Each laminate includes an anode or negative electrode, a cathode or positive electrode, and a solid electrolyte comprising a polymer and a lithium salt separating the positive electrode from the negative electrode and providing ionic conductivity between the electrodes. The negative electrode may be a lithium or lithium alloy metal sheet or an active material capable of insertion and de-insertion of lithium ions such as carbon or Li4Ti5012 in a polymer binder while the positive electrode consists of electrochemically active material particles such as LiFePO4, LiMn02, LiMn204, etc., an electronically conductive additive and a solid polymer electrolyte which acts as a binder as well as provides the required ionic path between the electrochemically active material particles of the positive electrode and the solid electrolyte separator.
[0004] Contrary to lithium ion batteries which use a liquid electrolyte, lithium polymer batteries uses a solid electrolyte rendering this technology extremely safe.
However, to obtain optimal ionic conductivity and therefore optimal performance, the electrochemical cells must be heated to temperatures of 60 C to 80 C. Lithium polymer batteries therefore include a heating system to maintain the battery at a
5 nominal temperature of 40 C and to rapidly raise the temperature of the electrochemical cells to between 60 C and 80 C at the beginning of their discharge mode to obtain optimal performance from the battery. Once the optimal temperature is reached, the discharge operation generates sufficient heat to maintain the battery at its optimal temperature.
[0005] In operation, the excess heat generated by the plurality of electrochemical cells making up the battery is dissipated through the walls of the battery casing. The battery casing is preferably made of a rigid and heat conductive material such as aluminum or alloy thereof that efficiently conducts the excess heat outside the battery casing and there may be a cooling system outside the battery casing to accelerate heat dissipation when require.
[0006] In normal discharge operation, it was found that in a stack of electrochemical cells encased in a battery casing as described above, the electrochemical cells located adjacent to the walls of the battery casing were the first to reach their end of discharge voltage thereby marginally lowering the overall discharge capacity of the battery. This phenomena was attributed to the fact that these particular electrochemical cells were operating at slightly lower operating temperatures because they were losing heat more rapidly through the walls of the battery casing than the other electrochemical cells located farther away from the walls of the battery casing
[0007] Thus, there is a need for a battery casing and electrochemical cells configurations adapted to compensate for heat loss through heat sinks of the battery casing.
SUMMARY OF THE INVENTION
[0008] It is an object of the present invention to ameliorate at least some of the inconveniences present in the prior art.
[0009] In one aspect, the invention provides a lithium battery comprising a plurality of electrochemical cells assembled together which are inserted in a rigid casing having side walls and upper and lower walls forming an enclosure; and at least one heat sink path to dissipate excess heat generated by the electrochemical cells; the - 3 ¨
electrochemical cells are assembled such that the electrochemical cells positioned adjacent to the heat sink path have a different configuration than the other electrochemical cells of the battery.
[0010] In a further aspect, the electrochemical cells positioned adjacent to the heat sink path are more capacitive than the other electrochemical cells of the bundle.
[0011] In a further aspect, the more capacitive electrochemical cells include at least n+1 laminates.
[0012] In a another aspect, the invention provides a rigid casing further comprises a internal wall providing a further heat sink path and wherein the electrochemical cells positioned adjacent to the internal wall have a different configuration than the other electrochemical cells of the bundle.
[0013] In another aspect, the electrochemical cells positioned adjacent to the heat sink path have a lower impedance than the other electrochemical cells of the battery.
[0014] In another aspect, the electrochemical cells positioned adjacent to the heat sink path include laminates in which the cathode is thinner than the other electrochemical cells of the bundle.
[0015] Embodiments of the present invention each have at least one of the above-mentioned objects and/or aspects, but do not necessarily have all of them. It should be understood that some aspects of the present invention that have resulted from attempting to attain the above-mentioned objects may not satisfy these objects and/or may satisfy other objects not specifically recited herein.
[0016] Additional and/or alternative features, aspects, and advantages of embodiments of the present invention will become apparent from the following description and the accompanying drawings.
Date Recue/Date Received 2023-05-10 BRIEF DESCRIPTION OF THE DRAWINGS
[0017] For a better understanding of the present invention, as well as other aspects and further features thereof, reference is made to the following description which is to be used in conjunction with the accompanying drawings, where:
[0018] Figure 1 is a perspective view of an example of a battery comprising a plurality of electrochemical cells;
[0019] Figure 2 is a schematic view of a single electrochemical cell laminate;
[0020] Figure 3 is a schematic view of one embodiment of a battery having a bundle of electrochemical cells numbered 1 to 14 enclosed in a rigid casing;
[0021] Figure 4 is a graph of the voltage of each electrochemical cell numbered 1 to 14 at the end of a discharge of the battery shown in Figure 3;
[0022] Figure 5 is a schematic view of second embodiment of a battery having two bundles of electrochemical cells numbered Ito 14 enclosed in a rigid casing;
[0023] Figure 6 is a graph of the voltage of each electrochemical cell numbered Ito 14 at the end of a discharge of the battery shown in Figure 5;
[0024] Figure 7 is a graph showing the voltage of each electrochemical cell numbered 1 to 14 at the end of a discharge of the battery shown in Figure 3 with a modified configuration;
[0025] Figure 8 is a graph showing the voltage of each electrochemical cell numbered 1 to 14 at the end of a discharge of the battery shown in Figure 5 with a modified configuration;
[0026] Figure 9 is a graph showing the voltage of each electrochemical cell numbered 1 to 14 at the end of a discharge of the battery shown in Figure 3 with a modified configuration;
[0027] Figure 10 is a graph showing the voltage of each electrochemical cell numbered 1 to 14 at the end of a discharge of the battery shown in Figure 5 with a modified configuration;
[0028] Figure 11 is a schematic view of third embodiment of a battery having three bundles of electrochemical cells numbered Ito 18 enclosed in a rigid casing;
[0029] Figure 12 is a graph of the voltage of each electrochemical cell numbered 1 to 18 at the end of a discharge of the battery shown in Figure 11;
[0030] Figure 13a is a schematic top plan view of another embodiment of a battery having a plurality of cylindrical electrochemical cells enclosed in a rigid casing;
[0031] Figure 13b is a schematic side elevational view of the battery shown in Figure 13a having a plurality of cylindrical electrochemical cells enclosed in a rigid casing; and
[0032] Figure 14 is a schematic top plan view of a single cylindrical electrochemical cell.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0033] FIG. 1 illustrates one embodiment of a lithium metal polymer battery 10, with a cut-away portion showing its internal components. In this specific example, the battery 10 includes a plurality of electrochemical cells 12 stacked one against the other, connected together in series and connected to battery poles 14 and 15.
The stack of electrochemical cells 12 is connected to an electronic control board 16 that controls the charge and discharge mode of the electrochemical cells 12 and monitors various parameters of the battery 10 including the tension or voltage of each individual electrochemical cell 12 at all-time as well as the temperature of the battery 10.
[0034] The battery 10 includes a rigid casing 30 made of extruded aluminum having side walls 32 and upper and lower walls 34 forming an enclosure 37. The stack of electrochemical cells 12 are assembled together to form a bundle 38 which is inserted into the enclosure 37 formed by the rigid casing 30 for protection and for thermally isolating the bundle 38 to maintain optimal temperatures of the electrochemical cells 12 . In the illustrated embodiment of Figure 1, the rigid casing 30 further comprises a internal wall 40 extending the entire length of the rigid casing õ..

30 providing added rigidity the casing 30 and thereby forming two distinct enclosures 37 and 39 such that the battery 10 includes two bundles 38 of electrochemical cells 12, one inserted in each enclosure 37 and 39. Each bundle 38 is maintained under pressure by a pressure system 42 consisting of a series of springs 44 exerting a force on a plate 43 which applies an even pressure on the bundle 38.
[0035] The battery 10 includes a heating system (not shown) located along the side walls 32 of the rigid casing 30. The heating system provides heat to the bundles 37 and 39 through the side walls 32 of the rigid casing 30 to maintain the battery 10 at a nominal temperature of 40 C in floating mode and to rapidly raise the temperature of the electrochemical cells 12 to between 60 C and 80 C at the beginning of their discharge mode.
[0036] Once the discharge temperature has been reached, the upper and lower walls 34 and 36 and the internal wall 40 of the rigid casing 30 provide a heat sink path to dissipate excess heat generated by the bundles 38 of electrochemical cells 12 in order to prevent overheating of the electrochemical cells 12.
[0037] Each electrochemical cell 12 consists of a multi-layer assembly of single laminates 20 as illustrated schematically in FIG. 2. Each laminate 20 comprises an anode 22 that acts as a lithium source, a cathode 26 having an electrochemically active material capable of occluding and releasing lithium ions and an electrolyte 24 separating the anode 22 from the cathode 26 and acting as a lithium ion carrier. The anode 22 and the cathode 26 are made of materials capable of reversible insertion of lithium ions. The anode 22 may be a metallic lithium foil or a composite material comprising, for example, carbon-based intercalation compounds and a polymer, copolymer or terpolymer binder supported on a metallic current collector (not shown).
The cathode 26 is typically a composite mixture of transitional metal oxide or phosphate and a polymer, copolymer or terpolymer binder including a lithium salt dissolved therein, supported by a current collector 28. The electrolyte 24 consists essentially of a lithium salt dissolved in a polymer, copolymer or terpolymer.
[0038] The cathode 26 preferably has a thickness of 70 m 2 m; the anode preferably has a thickness of 50 m 2 m; and the electrolyte 24 preferably has a thickness of 401.im+211m.
[0039] Bundles of electrochemical cells 12 typically include a plurality of identical electrochemical cells 12 having the same number of laminates 20 and therefore having the same capacity. Figure 3 illustrates schematically an embodiment of a battery having a single bundle 38 including 14 electrochemical cells 12 numbered 1 to 14 enclosed in a rigid casing 30 having side walls 32 and upper and lower walls 34 and 36. Each electrochemical cell 12 has the same number of laminates 20 and the same capacity.
[0040] Figure 4 is a graph showing the voltage of each electrochemical cell 12 numbered 1 to 14 at the end of a discharge of the battery. There emerges from the graph of Figure 4 a profile indicating that electrochemical cells Nos. 1, 2 and 13, 14 have reached their end of discharge voltage more rapidly than electrochemical cells Nos. 3 to 12. Since the battery reaches its end of discharge voltage when one of the electrochemical cells 12 of the bundle 38 reaches its end of discharge, the battery stopped operating while a plurality of its electrochemical cells 12 were still within their voltage discharge operating window. The battery effectively stopped operating with capacity remaining.
[0041] Figure 5 illustrates schematically an embodiment of a battery having two bundles 38 enclosed in a rigid casing 30 having side walls 32, upper and lower walls 34 and 36 and an internal wall 40 defining two enclosures 37 and 39. The first bundle 38 located in enclosure 37 includes 7 electrochemical cells 12 numbered 1 to 7 and the second bundle 38 located in enclosure 39 includes 7 electrochemical cells 12 numbered 8 to 14. As in the previous embodiment described with reference to Figure 3, each electrochemical cell 12 of the two bundles 38 has the same number of laminates 20 and the same capacity.
[0042] Figure 6 is a graph showing the voltage of each electrochemical cell 12 numbered 1 to 7 and 8 to 14 at the end of a discharge of the battery. There emerges from the graph of Figure 6 a profile indicating that electrochemical cells Nos. 1, 2, 6 to 9 and 13, 14 have reached their end of discharge voltage more rapidly than electrochemical cells Nos. 3 to 5 and 10 to 12. Since the battery reaches its end of discharge voltage when one of the electrochemical cells 12 of the bundle 38 reaches its end of discharge voltage, the battery stopped operating while a plurality of its electrochemical cells 12 were still within their voltage discharge operating window.
Again, the battery effectively stopped operating with capacity remaining.
[0043] There emerges from the graphs of Figures 4 and 6 that the electrochemical cells located close to the heat sinks provided by the upper and lower walls 34 and 36 and by the internal wall 40 reach their end of discharge voltage more rapidly than the electrochemical cells located farther away from those heat sinks.
Since the discharge capacity of the electrochemical cells 12 is dependent upon the temperature of the electrochemical cells 12, it stands to reason that the electrochemical cells located close to the heat sinks i.e. upper and lower walls 34 and 36 and/or internal wall 40, have more difficulties remaining at their operating temperatures due to their proximity to heat sinks and therefore are colder and effectively have less capacity than the electrochemical cells located farther away from the heat sinks.
[0044] To alleviate this problem, the inventors have tested a new bundle assembly in which the electrochemical cells close to the heat sinks provided by the upper and lower walls 34 and 36 and/or to the internal wall 40 have a different configuration than the electrochemical cells located farther away from the heat sinks.
[0045] In one embodiment, the electrochemical cells 12 close to the heat sinks have a higher capacity than the electrochemical cells located farther away from the heat sinks. To produce electrochemical cells 12 having a higher capacity, one solution is to increase the active surface of the electrochemical cell 12 by adding laminates 20 and effectively lowering the impedance or internal resistance of the electrochemical cell thereby increasing the capacity of the electrochemical cell 12.
[0046] Referring back to Figure 3, a new bundle 38 was configured and assembled with electrochemical cells Nos. 3 to 12 having n laminates 20, electrochemical cells Nos. 2 and 13 having n+2 laminates 20 and electrochemical cells Nos. 1 and 14 having n+4 laminates 20. Figure 7 is a graph showing the voltage of each electrochemical cell numbered 1 to 14 at the end of a discharge of the battery.
The graph shows that the profile of end of discharge voltage of the electrochemical cells Nos. 1 to 14 has levelled off as compared to the profile of the graph of Figure 4 -9-.
and that electrochemical cells Nos. 1,2 and 13, 14 have reached their end of discharge voltage almost at the same time as electrochemical cells Nos. 3 to 12.
[0047] Referring back to Figure 5, similarly, two new bundles 38 were configured and assembled. The first bundle 38 was configured with electrochemical cells Nos. 3 to 5 having n laminates 20, electrochemical cells Nos. 2 and 6 having n+2 laminates 20 and electrochemical cells Nos. 1 and 7 having n+4 laminates 20.
The second bundle 38 was configured with electrochemical cells Nos. 10 to 12 having n laminates 20, electrochemical cells Nos. 9 and 13 having n+2 laminates 20 and electrochemical cells Nos. 8 and 14 having n+4 laminates 20. Figure 8 is a graph showing the voltage of each electrochemical cell numbered 1 to 14 at the end of a discharge of the battery. The graph shows that the profile of end of discharge voltage of the electrochemical cells Nos. 1 to 7 and 8 to I 4 has levelled off as compared to the profile of the graph of Figure 6 and that electrochemical cells Nos. 1, 2, 6-9 and 13, 14 have reached their end of discharge voltage almost at the same time as electrochemical cells Nos. 3 to 12.
[0048] Thus, the new configurations of bundle of electrochemical cells in which the electrochemical cells positioned adjacent or close to the heat sinks of the rigid casing i.e. upper and lower walls and internal wall of the rigid casing are more capacitive than the electrochemical cells of the bundle located farther away from the heat sinks solves the problem of premature end of discharge of the battery 10.
The new configuration takes into account the position of the electrochemical cells relative to the various heat sinks of the rigid casing by increasing the capacity of the electrochemical cells close to the heat sinks and the increased capacity of the those electrochemical cells is obtained by adding laminates 20 to the electrochemical cells.
[0049] The more capacitive electrochemical cells 12 described have n+2 and n+4 laminates 20. However, various configurations of bundles 38 are possible depending on the measured differences of end of voltage of the electrochemical cells of a bundle 38. Configuration wherein the electrochemical cells 12 close to the heat sinks of the rigid casing have n+1, n+2, n+3, n+4 and n+5 are possible and contemplated.
[0050] Another solution to the problem of premature end of cycle of the electrochemical cells 12 located adjacent to the heat sinks provided by the upper and lower walls 34 and 36 and the internal wall 40, contemplated by the inventors was to lower the impedance or internal resistance of those electrochemical cells adjacent to the heat sinks by reducing the thickness of the cathodes 26 of each laminate 20.
[0051] In another specific embodiment, the impedance of the electrochemical cells 12 adjacent to the heat sinks is reduced by producing laminates 20 in which the cathode 26 is thinner than the cathode 26 of the laminates 20 of the other electrochemical cells 12. An electrochemical cell 12 in which each constituent laminate 20 is made with a cathode 26 having a thickness of 60 m 21.tm instead of 70 m 21tm or approximately 101.1.m less than the cathode of the laminates of the other electrochemical cells 12 of the bundle 38 will have a lower capacity than the other electrochemical cells but will perform better in discharge mode at lower temperature and this increased discharge capability should compensate for the lower temperature experienced by those electrochemical cells 12 close to the heat sinks.
Preferably, the electrochemical cells 12 in which each constituent laminate 20 is made with a thinner cathode 26 should include more laminate 20 in order to compensate for the lower capac it)'.
[0052] The inventors have therefore tested a new bundle configuration in which the electrochemical cells 12 close to the heat sinks of the upper and lower walls 34 and 36 and/or to the internal wall 40 include laminates 20 made with a cathode 26 having a thickness of approximately lOpm less than the cathode of the laminates of the other electrochemical cells 12 of the bundle 38 i.e a thickness of 60 m 2p.m instead of 70p.m21.tm. Referring back to Figure 3, a new bundle 38 was configured and assembled with electrochemical cells Nos. Ito 14 having n laminates 20 but with electrochemical cells Nos. 1, 2 and 13, 14 including laminates 20 made with a cathode 26 having a thickness of 60 m 2prn instead of 70 m 21.1.m.
[0053] Figure 9 is a graph showing the voltage of each electrochemical cell numbered 1 to 14 at the end of a discharge of the battery. The graph shows that the profile of end of discharge voltage of the electrochemical cells Nos. 1 to 14 has levelled off as compared to the profile of the graph of Figure 4 and that electrochemical cells Nos. 1, 2 and 13, 14 have reached their end of discharge voltage ___._..._.

- I I -almost at the same time as electrochemical cells Nos. 3 to 12 which demonstrates that the increased discharge capability of electrochemical cells Nos. 1, 2 and 13, 14 at lower temperature has compensated for the lower temperature experienced by those electrochemical cells close to the heat sinks.
[0054] Referring back to Figure 5, similarly, two new bundles 38 were configured and assembled. The first bundle 38 was configured and assembled with electrochemical cells Nos. 1 to 7 having n laminates 20 but with electrochemical cells Nos. 1, 2 and 6, 7 including laminates 20 made with a cathode 26 having a thickness of 60 m 2 rn instead of 7011m 2 m or approximately lOtim less than the cathode of the laminates of the other electrochemical cells of the bundle. The second bundle 38 was configured and assembled with electrochemical cells Nos. 8 to 14 having n laminates 20 but with electrochemical cells Nos. 8, 9 and 13, 14 including laminates 20 made with a cathode 26 having a thickness of 6011m 2 m instead of 701Lm 2tim.
[0055] Figure 10 is a graph showing the voltage of each electrochemical cell numbered 1 to 14 at the end of a discharge of the battery. The graph shows that the profile of end of discharge voltage of the electrochemical cells Nos. 1 to 7 and 8 t014 has levelled off as compared to the profile of the graph of Figure 6 and that electrochemical cells Nos. I, 2, 6-9 and 13, 14 have reached their end of discharge voltage almost at the same time as electrochemical cells Nos. 3 to 12 which further demonstrates that the increased discharge capability at lower temperature of the electrochemical cells close to the heat sinks has compensated for the lower temperature experienced by those electrochemical cells.
[0056] Figure 11 illustrates schematically another embodiment of a battery having three bundles 60 enclosed in a rigid casing 30 having side walls 32, upper and lower walls 34 and 36 and two internal walls 62 and 63 defining three enclosures 64, 65 and 66. The first bundle 60 located in enclosure 34 includes six electrochemical cells 12 numbered 1 to 6, the second bundle 60 located in enclosure 65 includes six electrochemical cells 12 numbered 7 to 12, and the third bundle 60 located in enclosure 66 includes six electrochemical cells 12 numbered 13 to 18. As in the previous embodiments described with reference to Figures 3 and 5, each electrochemical cell 12 of the two bundles 60 has the same number of laminates and the same capacity.
[0057] Figure 12 is a graph showing the voltage of each electrochemical cell 12 numbered 1 to 6, 7 to 12 and 13 to 18 at the end of a discharge of the battery.
There emerges from the graph of Figure 14 a profile indicating that electrochemical cells Nos. 1, 2, 5 to 8, 11 to 14 and 17, 18 have reached their end of discharge voltage more rapidly than electrochemical cells Nos. 3-4, 9-10, and 15-16. Since the battery reaches its end of discharge voltage when one of the electrochemical cells 12 of the bundle 38 reaches its end of discharge voltage to prevent overdischarge of its electrochemical cells 12, the battery stopped operating while a plurality of its electrochemical cells 12 were still within their voltage discharge operating window.
Again, the battery effectively stopped operating with capacity remaining.
[0058] There emerges once again from the graph of Figure 12 that the electrochemical cells located close to the heat sinks provided by the upper and lower walls 34 and 36 and by the internal walls 62 and 63 reach their end of discharge voltage more rapidly than the electrochemical cells located farther away from those heat sinks. Since the discharge capacity of the electrochemical cells 12 is dependent upon the temperature of the electrochemical cells 12, it stands to reason that the electrochemical cells located close to the heat sinks have more difficulties remaining at their operating temperatures due to their proximity to heat sinks and therefore are colder and effectively have less capacity than the electrochemical cells located farther away from the heat sinks.
[0059] The same solutions previously described apply to the embodiment of the battery of Figure II including three bundles 60 enclosed in a rigid casing having two internal walls 62 and 63 to alleviate this problem. The inventors have devised new bundle assemblies in which the electrochemical cells close to the heat sinks have a different configuration than the electrochemical cells located farther away from the heat sinks. Specifically, the electrochemical cells Nos. 1, 2, 5 to 8, 11 to 14 and 17, 18 which are close to the heat sinks may be configured to have a higher capacity than the electrochemical cells located farther away from the heat sinks by adding laminates 20 to the electrochemical cells Nos. 1, 2, 5 to 8, 11 to 14 and 17, 18 and effectively lowering the impedance or internal resistance of these electrochemical cells thereby increasing the capacity of electrochemical cell Nos. 1, 2, 5 to 8, 11 to 14 and 17, 18.
[0060] The other solution also applies to the embodiment of the battery of Figure 11 including three bundles 60 wherein electrochemical cells Nos. 1, 2, 5 to 8, 11 to 14 and 17, 18 are made with laminates 20 having increased discharge capability at lower temperature of those electrochemical cells and lower impedance or internal resistance by reducing the thickness of the cathodes 26 as previously described.
[0061] The various solutions to the problem of premature end of cycle of the electrochemical cells located adjacent to the heat sinks provided by the walls of the casing of a battery also apply to a battery having plurality of cylindrical electrochemical cells or a plurality of prismatic electrochemical cells.
[0062] With reference to Figures 13a and 13b, there is shown a battery 50 including an array of cylindrical electrochemical cells 52 inserted in a rigid casing 54.
The electrochemical cells 52 closest or adjacent to the walls of the rigid casing 54 which act as heat sinks are subject to the same problem of reaching the end of their discharge voltage before the electrochemical cells 52 located away from the heat sinks reach their end of discharge voltage. Because the battery 50 reaches its end of discharge voltage when one of the electrochemical cells 52 reaches its end of discharge voltage, the battery 50 stopped operating while a plurality of its electrochemical cells 52 were still within their voltage discharge operating window.
The battery 50 therefore stopped operating with capacity remaining.
[0063] With reference to Figure 14, cylindrical electrochemical cells 52 consists of a single laminate 20 rolled multiple times into a spiral, the length of the single laminate 20 defines the number of layers or turns in the spiral roll 56 which defines the capacity of the cylindrical electrochemical cell 52. Therefore, in order to increase the capacity of the cylindrical electrochemical cells 52 close to or adjacent to the walls of the rigid casing 54, it is possible to produce cylindrical electrochemical cells 52 having a longer laminate 20 rolled into a spiral and therefore produce an electrochemical cell 52 having one or more layers or turns in the spiral roll 56. As previously described, positioning cylindrical electrochemical cells 52 having more capacity adjacent to the walls of the rigid casing 54 which act as heat sinks solves the problem of reaching the end of their discharge voltage before the electrochemical cells 52 located away from the heat sinks reach their end of discharge voltage. As well, producing an electrochemical cell 52 having a laminate 20 in which the cathode 26 is thinner than the cathode 26 of the laminate 20 of the other electrochemical cells 52 will reduce the impedance of the electrochemical cells 52 adjacent to the heat sinks which will perform better in discharge mode at lower temperature and this increased discharge capability will compensate for the lower temperature experienced by those electrochemical cells 52 close to the heat sinks and furthermore the laminate having a thinner cathode 26 will be thinner such that the spiral roll 56 will include more layers or turns thereby compensating for the lower capacity of a thinner cathode 26.
[0064] Similarly, a battery which includes a plurality of prismatic electrochemical cells inserted in a rigid casing will encounter the same problem wherein the prismatic electrochemical cells closest or adjacent to the walls of the rigid casing which act as heat sinks will reach the end of their discharge voltage before the electrochemical cells located away from the heat sinks reach their end of discharge voltage and therefore the battery will reach its end of discharge voltage when one of the electrochemical cells reaches its end of discharge voltage. The battery will stop operating while a plurality of its prismatic electrochemical cells is still within their voltage discharge operating window. The prismatic battery therefore stopped operating with capacity remaining.
[0065] As described with reference to cylindrical electrochemical cells 52, a prismatic electrochemical cell consists of a single laminate flat rolled multiple times into a flat spiral roll; the length of the single laminate defines the number of layers or turns in the flat spiral roll which defines the capacity of the prismatic electrochemical cell. Therefore, to increase the capacity of the prismatic electrochemical cell close to or adjacent to the walls of the rigid casing, it is possible to produce prismatic electrochemical cells having a longer laminate rolled into a flat spiral roll and therefore produce a an electrochemical cell having one or more layers or turns in the flat spiral roll. As previously described, positioning prismatic electrochemical cells having more capacity adjacent to the walls of the rigid casing which act as heat sinks solves the problem of reaching the end of their discharge voltage before the prismatic electrochemical cells located away from the heat sinks reach their end of discharge voltage. As well, producing prismatic electrochemical cells with a laminate having a thinner cathode rolled into a flat spiral roll will have a lower impedance and more - 15 ¨
layers or turns in the flat spiral roll thereby increasing the discharge capability of the electrochemical cell at lower temperature.
[0066] The same problematic applies to batteries using cooling systems to maintain the temperature of their electrochemical cells below a predetermined temperature threshold. The electrochemical cells located closest to the path of the cooling fluid which acts as heat sinks will reach their end of their discharge voltage before the electrochemical cells located away from the heat sinks. As described with reference to the previous embodiments of the invention, the problem is solved rearranging the electrochemical cells in the battery such that the electrochemical cells positioned adjacent to the heat sink path of the cooling system have a different configuration than the other electrochemical cells of the battery.
[0067] Modifications and improvements to the above-described embodiments of the present invention may become apparent to those skilled in the art. The scope of the present invention is therefore intended to be limited solely by the scope of the appended claims.
Date Recue/Date Received 2023-05-10

Claims (23)

What is claimed is:
1. A lithium battery comprising:
a plurality of electrochemical cells assembled together, the plurality of electrochemical cells including:
at least one first electrochemical cell;
at least one second electrochemical cell;
at least one third electrochemical cell disposed between the at least one first electrochemical cell and the at least one second electrochemical cell;
at least one fourth electrochemical cell;
at least one fifth electrochemical cell; and at least one sixth electrochemical cell; and a rigid casing having a plurality of walls forming an enclosure, the plurality of walls including a first wall, a second wall and an internal wall, the second wall being disposed opposite the first wall, the at least one first electrochemical cell being disposed between the first wall and the at least one third electrochemical cell, the at least one second electrochemical cell being disposed between the second wall and the at least one third electrochemical cell, the at least one fifth electrochemical cell being disposed between the at least one third electrochemical cell and the internal wall, the at least one third electrochemical cell being disposed between the at least one first electrochemical cell and the at least one fifth electrochemical cell, the at least one sixth electrochemical cell being disposed between the at least one fourth electrochemical cell and the internal wall, the at least one fourth electrochemical cell being disposed between the at least one second electrochemical cell and the at least one sixth electrochemical cell, the first and second walls providing a heat sink path to dissipate excess heat generated by the plurality of electrochemical cells, the internal wall providing a further heat sink path, the at least one first electrochemical cell being more capacitive than the at least one third electrochemical cell, the at least one second electrochemical cell being more capacitive than the at least one third electrochemical cell, Date Regue/Date Received 2023-05-10 the at least one second electrochemical cell being more capacitive than the at least one fourth electrochemical cell, the at least one fifth electrochemical cell being more capacitive than the at least one third electrochemical cell, and the at least one sixth electrochemical cell being more capacitive than the at least one fourth electrochemical cell.
2. A lithium battery as defined in claim 1, wherein:
the at least one third electrochemical cell includes n laminates; and the at least one first electrochemical cell and the at least one second electrochemical cell each include at least n+1 laminates.
3. A lithium battery as defined in claim 2, wherein the at least one first electrochemical cell and the at least one second electrochemical cell each include at least n+2 laminates.
4. A lithium battery as defined in claim 1, wherein:
the at least one third electrochemical cell and the at least one fourth electrochemical cell each include n laminates; and the at least one first electrochemical cell, the at least one second electrochemical cell, the at least one fifth electrochemical cell and the at least one sixth electrochemical cell each include at least n+1 laminates.
5. A lithium battery as defined in claim 4, wherein the at least one first electrochemical cell, the at least one second electrochemical cell, the at least one fifth electrochemical cell and the at least one sixth electrochemical cell each include at least n+2 laminates.
6. A lithium battery as defined in claim 1, wherein the at least one first electrochemical cell and the at least one second electrochemical cell each have a lower impedance than the at least one third electrochemical cell.
7. A lithium battery as defined in claim 6, wherein:
each electrochemical cell of the plurality of electrochemical cells includes an anode, a cathode and an electrolyte; and the cathode of the at least one first electrochemical cell and the cathode of the at least one second electrochemical cell are thinner than the cathode of the at least one third electrochemical cell.
8. A lithium battery as defined in claim 7, wherein the cathode of the at least one first electrochemical cell and the cathode of the at least one second electrochemical cell have a thickness of 1 Otim less than the cathode of the at least one third electrochemical cell.
9. A lithium battery as defined in claim 1, wherein:
each electrochemical cell of the plurality of electrochemical cells consists of a multi-layer assembly of single laminates; and the electrochemical cells of the plurality of electrochemical cells are stacked one against the other to forin a bundle.
10. A lithium battery as defined in claim 1, wherein each electrochemical cell of the plurality of electrochemical cells consists of a single laminate rolled multiple times into a spiral to form a cylindrical electrochemical cell.
11. A lithium battery as defined in claim 1, further comprising a pressure system disposed between the first wall and the at least one first electrochemical cell.
12. A lithium battery as defined in claim 11, wherein the pressure system includes:
a plate; and a series of springs disposed between the first wall and the plate.
13. A lithium battery as defined in claim 1, wherein:
one of the at least one first electrochemical cell is the electrochemical cell of the plurality of electrochemical cells which is closest to the first wall; and one of the at least one second electrochemical cell is the electrochemical cell of the plurality of electrochemical cells which is closest to the second wall.
14. A lithium battery as defined in claim 1, wherein:
one of the at least one fifth electrochemical cell is adjacent to the internal wall; and Date Regue/Date Received 2023-05-10 one of the at least one sixth electrochemical cell is adjacent to the internal wall.
15. A lithium battery comprising:
a plurality of electrochemical cells assembled together which are inserted in a rigid casing having side walls and upper and lower walls forming an enclosure, the rigid casing further comprising an internal wall;
at least one heat sink path provided by the upper and lower walls of the casing and a further heat sink path provided by the internal wall of the casing, to dissipate excess heat generated by the electrochemical cells;
the electrochemical cells are assembled such that the electrochemical cells positioned adjacent to the upper and lower walls and to the internal wall are more capacitive than the other electrochemical cells of the battery.
16. A lithium battery as defined in claim 15, wherein the other electrochemical cells include n laminates and the more capacitive electrochemical cells include at least n+1 laminates.
17. A lithium battery as defined in claim 15, wherein the other electrochemical cells include n laminates and the more capacitive electrochemical cells include at least n+2 laminates.
18. A lithium battery as defined in claim 1, wherein the electrochemical cells positioned adjacent to the heat sink path have a lower impedance than the other electrochemical cells of the battery.
19. A lithium battery as defined in claim 18, wherein:
the electrochemical cells include an anode, a cathode and an electrolyte; and the electrochemical cells positioned adjacent to the heat sink path have a cathode which is thinner than the other electrochemical cells of the battery.
20. A lithium battery as defined in claim 19, wherein the cathode of the electrochemical cells positioned adjacent to the heat sink path has a thickness of 10 gm less than the cathode of the other electrochemical cells of the battery.
Date Regue/Date Received 2023-05-10
21. A lithium battery as defined in claim 1, wherein the electrochemical cell consists of a multi-layer assembly of single laminates and a plurality of electrochemical cells are stacked one against the other to form a bundle.
22. A lithium battery as defined in claim 21, further comprising a pressure system to maintain the bundle under pressure, said pressure system consisting of a series of springs exerting a force on a plate which applies an even pressure on the bundle.
23. A lithium battery as defined in claim 1, wherein the electrochemical cells consists of a single laminate rolled multiple times into a spiral to form cylindrical electrochemical cells.
CA3007843A 2015-12-11 2016-12-12 Battery with variable electrochemical cells configuration Active CA3007843C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562266036P 2015-12-11 2015-12-11
US62/266,036 2015-12-11
PCT/CA2016/000312 WO2017096465A1 (en) 2015-12-11 2016-12-12 Battery with variable electrochemical cells configuration

Publications (2)

Publication Number Publication Date
CA3007843A1 CA3007843A1 (en) 2017-06-15
CA3007843C true CA3007843C (en) 2024-06-18

Family

ID=59012483

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3007843A Active CA3007843C (en) 2015-12-11 2016-12-12 Battery with variable electrochemical cells configuration

Country Status (7)

Country Link
US (1) US10487033B2 (en)
EP (1) EP3387698B1 (en)
JP (1) JP6921103B2 (en)
KR (1) KR20180111795A (en)
CN (1) CN109196711A (en)
CA (1) CA3007843C (en)
WO (1) WO2017096465A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10487033B2 (en) 2015-12-11 2019-11-26 Blue Solutions Canada Inc. Battery with variable electrochemical cells configuration
EP3387697B1 (en) * 2015-12-11 2020-08-19 Blue Solutions Canada Inc. Battery with electrochemical cells having variable impedance
WO2019069784A1 (en) * 2017-10-06 2019-04-11 日本電気株式会社 Film-sheathed battery, battery pack and method for producing film-sheathed battery
US10797279B2 (en) * 2018-06-28 2020-10-06 Caterpillar Inc. Battery housing systems
CN112599891A (en) * 2021-01-08 2021-04-02 蔚来汽车科技(安徽)有限公司 Battery pack and vehicle
CN114790131A (en) * 2021-01-25 2022-07-26 孚能科技(赣州)股份有限公司 Positive lithium supplementing additive and positive electrode sheet and preparation method thereof and lithium ion battery
KR20240149950A (en) * 2022-05-10 2024-10-15 컨템포러리 엠퍼렉스 테크놀로지 (홍콩) 리미티드 Battery packs and electrical devices

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996017397A1 (en) * 1994-11-28 1996-06-06 Chartec Laboratories A/S A method and an apparatus for controlling battery temperature during charging/discharging
JP2000231911A (en) * 1999-02-12 2000-08-22 Toyota Motor Corp Battery
EP1184918B1 (en) * 2000-08-28 2009-10-14 Nissan Motor Co., Ltd. Rechargeable lithium ion battery
JP2004303456A (en) 2003-03-28 2004-10-28 Sanyo Electric Co Ltd Battery pack
CN101657932A (en) * 2007-03-26 2010-02-24 吉列公司 Lithium secondary batteries
KR100937897B1 (en) * 2008-12-12 2010-01-21 주식회사 엘지화학 Middle or large-sized battery pack of novel air cooling structure
AT507703B1 (en) 2008-12-22 2012-06-15 Moove Gmbh E ENERGY STORAGE ARRANGEMENT AND METHOD FOR OPERATING SUCH AN ARRANGEMENT
JP2010170942A (en) 2009-01-26 2010-08-05 Toyota Motor Corp Battery pack, method for manufacturing the same, battery pack, battery pack module, vehicle mounting the same, and battery mounting equipment
DE102009035480A1 (en) * 2009-07-31 2011-02-03 Daimler Ag Battery i.e. lithium ion battery, for use in electrical powertrain of electric vehicle to store electricity, has valve units connected with battery modules such that cooling of modules is influenced depending on aging condition
US8483886B2 (en) 2009-09-01 2013-07-09 Boston-Power, Inc. Large scale battery systems and method of assembly
JP2012160283A (en) 2011-01-31 2012-08-23 Panasonic Corp Battery pack and battery module
JP5526073B2 (en) 2011-04-12 2014-06-18 株式会社日立製作所 Lithium ion secondary battery module, vehicle mounted with this, and power generation system
US9761850B2 (en) * 2011-10-28 2017-09-12 Nucleus Scientific, Inc. Multi-cell battery assembly
KR101475737B1 (en) * 2012-02-07 2014-12-24 주식회사 엘지화학 Battery Pack of Novel Air Cooling Structure
KR101178152B1 (en) 2012-02-23 2012-08-29 주식회사 엘지화학 Battery pack of novel structure
US20130236768A1 (en) 2012-03-08 2013-09-12 Lg Chem, Ltd. Battery pack of stair-like structure
FR2994511B1 (en) 2012-08-08 2015-09-04 Commissariat Energie Atomique METHOD FOR PRODUCING AN ELECTRIC BATTERY
JP2014116156A (en) * 2012-12-07 2014-06-26 Mitsubishi Electric Corp All-solid-state battery and manufacturing method therefor and circuit board using the same
KR101775547B1 (en) 2013-01-16 2017-09-06 삼성에스디아이 주식회사 Battery system comprising different kinds of cells and power device comprising the same
KR101999402B1 (en) 2013-01-16 2019-10-01 삼성에스디아이 주식회사 Battery Pack
US10381614B2 (en) * 2013-04-17 2019-08-13 Samsung Sdi Co., Ltd. Battery module
CN103779631B (en) * 2014-01-06 2015-11-04 浙江明烁节能科技股份有限公司 Lithium-ion battery heat insulation device
US10487033B2 (en) 2015-12-11 2019-11-26 Blue Solutions Canada Inc. Battery with variable electrochemical cells configuration
EP3387697B1 (en) * 2015-12-11 2020-08-19 Blue Solutions Canada Inc. Battery with electrochemical cells having variable impedance

Also Published As

Publication number Publication date
JP2018537837A (en) 2018-12-20
US20170179553A1 (en) 2017-06-22
US10487033B2 (en) 2019-11-26
EP3387698A1 (en) 2018-10-17
CA3007843A1 (en) 2017-06-15
WO2017096465A1 (en) 2017-06-15
EP3387698B1 (en) 2023-03-29
JP6921103B2 (en) 2021-08-18
CN109196711A (en) 2019-01-11
EP3387698A4 (en) 2019-08-07
KR20180111795A (en) 2018-10-11

Similar Documents

Publication Publication Date Title
CA3007843C (en) Battery with variable electrochemical cells configuration
CN114551984B (en) Solid state bipolar battery with thick electrodes
US10505222B2 (en) Pressurized lithium metal polymer battery
JP6822844B2 (en) Electrical energy storage element and its manufacturing method and manufacturing equipment
CA3007834C (en) Battery with electrochemical cells having variable impedance
US20130101878A1 (en) Battery comprising cuboid cells which contain a bipolar electrode
US10553858B2 (en) Lithium electrode for a rechargeable lithium-ion battery and method for the manufacture thereof
EP3039743A1 (en) Solid state battery with integrated rate booster
DE102012222689A1 (en) Energy storage device e.g. lithium-ion battery used in computer, has cellular uptake which is partially formed from thermally conductive insulating material, and that is contactingly arranged with wall side end portion of cell housing
CN111864211B (en) Electrode for secondary battery, method for manufacturing same, and secondary battery
KR101706319B1 (en) Electrode Assembly and Composite Electrode Assembly of Stair-like Structure
ES2761253T3 (en) Charged accumulator fused with intercalated electrodes
EP4297114A1 (en) Method for preparing positive electrode plate, and positive electrode plate and battery having same
KR101973360B1 (en) Bipolar solid state battery insulating package
CN102779970A (en) Pole ear output connector for multi-layer positive-negative pole of high ratio power poly-lithium battery
WO2019079258A2 (en) Anode material - method of production and solid-state battery made therewith
US20200014015A1 (en) Battery cell and battery having battery cell therein
US20230361266A1 (en) Method of improving electrode-to-solid-electrolyte interface contact in solid-state batteries
KR101287959B1 (en) Electrode for an energy storage unit

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20211103

W00 Other event occurred

Free format text: ST27 STATUS EVENT CODE: A-4-4-W10-W00-W100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: LETTER SENT

Effective date: 20251202

W00 Other event occurred

Free format text: ST27 STATUS EVENT CODE: A-4-4-W10-W00-W100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: LETTER SENT

Effective date: 20260226

H13 Ip right lapsed

Free format text: ST27 STATUS EVENT CODE: N-4-6-H10-H13-H100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE AND LATE FEE NOT PAID BY DEADLINE OF NOTICE

Effective date: 20260316