# US 2022/0045388 A1 · Immersion cooling battery array designs for electrified vehicle battery packs > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0045388 A1 - Document ID: US20220045388A1 - Status: Published application - Kind: A1 - Application number: 16/987,482 - Filed: 2020-08-07 - Published: 2022-02-10 - Earliest claimed: 2020-08-07 - Assignees: Ford Global Technologies, LLC - Applicants: Ford Global Technologies, LLC - Inventors: Thomas J. COUPAR; James George GEBBIE; Hao WU; Holly Marie GILBERT - Web page: https://patentgrep.com/patent/US20220045388A1 ## CPC - H01M 10/6567: Liquids - H01M 10/0481: {Compression means other than compression means for stacks of electrodes and separators} - H01M 10/613: Cooling or keeping cold - H01M 10/625: Vehicles - H01M 50/20: Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders (structural combination of accumulators with charging apparatus H01M10/46) - H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells - H01M 50/249: specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) - H01M 50/291: characterised by their shape - H01M 50/40: Separators; Membranes; Diaphragms; Spacing elements inside cells - H01M 10/647: Prismatic or flat cells, e.g. pouch cells - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract This disclosure details exemplary immersion cooling battery array designs for use in electrified vehicle battery packs or other electrified components. An exemplary battery array design may include a battery subassembly including a compressible spacer assembly and a plurality of battery cells held by the compressible spacer assembly. The battery subassembly may be surrounded by an outer shell assembly. A non-conductive (i.e., dielectric) fluid may be received and communicated inside the outer shell assembly for thermally managing heat generated by the battery cells. ## Claims ### Claim 1 A battery array, comprising: a first compressible spacer plate; a second compressible spacer plate; a battery cell received between the first and second compressible spacer plates to establish a battery subassembly; and an outer shell assembly enclosing the battery subassembly. ### Claim 2 (depends on 1) The battery array as recited in claim 1, wherein the battery cell is received within a first groove of the first compressible spacer plate and a second groove of the second compressible spacer plate. ### Claim 3 (depends on 1) The battery array as recited in claim 1, wherein each of the first compressible spacer plate and the second compressible spacer plate is movable between an uncompressed state and a compressed state relative to the battery cell. ### Claim 4 (depends on 3) The battery array as recited in claim 3, wherein a column that extends between the first and second compressible spacer plates is spaced apart from the battery cell in the uncompressed state and is positioned against the battery cell in the compressed state. ### Claim 5 (depends on 4) The battery array as recited in claim 4, wherein at least one of the first compressible spacer plate, the second compressible spacer plate, and the column includes a lattice structure having a plurality of interconnected passageways. ### Claim 6 (depends on 1) The battery array as recited in claim 1, wherein the outer shell assembly includes a first shell portion and a second shell portion that are connected together to enclose the battery subassembly inside the outer shell assembly. ### Claim 7 (depends on 6) The battery array as recited in claim 6, comprising a seal disposed between a flange of the first shell portion and an inner surface of the second shell portion. ### Claim 8 (depends on 1) The battery array as recited in claim 1, comprising an immersion cooling system including an inlet, an outlet, at least one open space, and at least one integrated fluid passage. ### Claim 9 (depends on 8) The battery array as recited in claim 8, comprising a non-conductive fluid received inside the battery array through the inlet and expelled from the battery array through the outlet. ### Claim 10 (depends on 8) The battery array as recited in claim 8, wherein the at least one integrated fluid passage extends between a first column that extends between the first and second compressible spacer plates and a second column that extends between a third compressible spacer plate and a fourth compressible spacer plate. ### Claim 11 A battery pack, comprising: an enclosure assembly; and a battery array housed inside the enclosure assembly, wherein the battery array includes: a battery subassembly; an outer shell assembly surrounding the battery subassembly; and a non-conductive fluid contained within the outer shell assembly and configured to immersion cool the battery subassembly. ### Claim 12 (depends on 11) The battery pack as recited in claim 11, wherein the battery subassembly includes a compressible spacer assembly and a plurality of battery cells held by the compressible spacer assembly. ### Claim 13 (depends on 12) The battery pack as recited in claim 12, wherein the compressible spacer assembly includes a first compressible spacer plate, a second compressible spacer plate, and at least two columns that connect between the first and second compressible spacer plates. ### Claim 14 (depends on 11) The battery pack as recited in claim 11, wherein the outer shell assembly includes a first shell portion and a second shell portion that are connected together to enclose the battery subassembly inside the outer shell assembly. ### Claim 15 (depends on 11) The battery pack as recited in claim 11, comprising an inlet configured to receive the non-conductive fluid within an interior of the battery array and an outlet configured to expel the non-conductive fluid from the interior. ### Claim 16 (depends on 15) The battery pack as recited in claim 15, comprising an open space between the outer shell assembly and the battery subassembly, wherein the open space is in fluid communication with the inlet, and further comprising an integrated flow path in fluid communication with the open space. ### Claim 17 (depends on 16) The battery pack as recited in claim 16, wherein inlet, the open space, and the integrated flow path establish a fluid flow pattern for communicating the non-conductive fluid through the interior of the battery array. ### Claim 18 (depends on 17) The battery pack as recited in claim 17, wherein the fluid flow pattern extends across a face of a battery cell of the battery subassembly. ### Claim 19 (depends on 11) The battery pack as recited in claim 11, wherein a compressible spacer assembly of the battery subassembly is movable between an uncompressed state and a compressed state relative to a battery cell of the battery subassembly. ### Claim 20 (depends on 11) The battery pack as recited in claim 11, wherein the non-conductive fluid is a dielectric fluid.