# US 12,763,421 B2 · Electrical storage module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,763,421 B2 - Document ID: US12763421B2 - Status: Granted - Kind: B2 - Application number: 17/904,186 - Filed: 2021-02-25 - Published: 2023-03-02 - Granted: 2026-10-13 - Earliest claimed: 2020-02-28 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: Tatsuya Hirano; Hiroshi Takasaki - Web page: https://patentgrep.com/patent/US12763421B2 ## CPC - H01M 50/289: characterised by spacing elements or positioning means within frames, racks or packs (spacing elements inside cells other than separators, membranes or diaphragms H01M50/471) - H01G 11/10: Multiple hybrid or EDL capacitors, e.g. arrays or modules (housings, cases, encapsulations or mountings thereof H01G11/78) - H01G 11/80: Gaskets; Sealings - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 50/213: adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) - 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 50/502: Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - H01G: CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B3/00; capacitors having potential barriers H10D1/62, H10K10/10) ## Abstract An electrical storage module includes electrical storage devices and a holder including housing parts housing the electrical storage devices therein. Each electrical storage device has an outer circumferential surface, a first end surface provided at a first end of the outer circumferential surface, and a second end surface which is provided at a second end of the outer circumferential surface and is opposite to the first end in a first direction. An inner circumferential surface of the housing part faces the outer circumferential surface of the electrical storage device. The inner circumferential surface includes a sealing member pressing the outer circumferential surface. A resin member is housed in a space demarcated by the inner circumferential surface of the housing part, the outer circumferential surface of the electrical storage device, and the sealing member. ## Claims ### Claim 1 An electrical storage module comprising: a plurality of electrical storage devices; a holder including a plurality of housing parts, each of the plurality of housing parts housing a corresponding one of the plurality of electrical storage devices therein, a first resin member, wherein the corresponding one of the plurality of electrical storage devices has an outer circumferential surface, a first end surface which is provided at a first end of the outer circumferential surface, and a second end surface which is provided at a second end of the outer circumferential surface and is opposite to the first end in a first direction, each of the plurality of housing parts has an inner circumferential surface which faces the outer circumferential surface of the corresponding one of the plurality of electrical storage devices, and the inner circumferential surface includes a first sealing member protruding from the inner circumferential surface in a second direction crossing the first direction, a top of the first sealing member pressing the outer circumferential surface, the top of the first sealing member being disposed between and spaced apart from both ends of the inner circumferential surface in the first direction, the inner circumferential surface includes a cylindrical portion having a constant diameter along the first direction, the top of the first sealing member faces only the cylindrical portion of the inner circumferential surface, and the first resin member is housed in a first space demarcated by the inner circumferential surface of each of the plurality of housing parts, the outer circumferential surface of the corresponding one of the plurality of electrical storage devices, and the first sealing member. ### Claim 2 (depends on 1) The electrical storage module according to claim 1, wherein each of the plurality of housing parts of the holder has a through-hole provided therein, the through-hole extending in the first direction. ### Claim 3 (depends on 1) The electrical storage module according to claim 1, wherein at least a portion of a peripheral edge of the first end surface is exposed from the holder when the electrical storage module is viewed from the first end surface in the first direction. ### Claim 4 (depends on 1) The electrical storage module according to claim 1, wherein at least a portion of a peripheral edge of the second end surface is exposed from the holder when the electrical storage module is viewed from the second end surface in the first direction. ### Claim 5 (depends on 1) The electrical storage module according to claim 1, wherein the first sealing member comprises a plurality of first sealing members provided which are provided on the inner circumferential surface of the holder and are arranged along the first direction. ### Claim 6 (depends on 1) The electrical storage module according to claim 1, wherein the first sealing member has a tubular shape covering a portion of the outer circumferential surface therein. ### Claim 7 (depends on 1) The electrical storage module according to claim 1, wherein the holder includes a first holder component and a second holder component communicating with each other in the first direction, the first holder component includes a first housing portion housing a portion of the corresponding one of the plurality of electrical storage devices including the first end surface, the second holder component includes a second housing portion housing a portion of the corresponding one of the plurality of electrical storage devices including the second end surface, the first sealing member is provided on a first portion of the inner circumferential surface assigned to the first housing portion, and the resin member is housed in the first space demarcated by the first portion of the inner circumferential surface assigned to the first housing portion, the outer circumferential surface of the corresponding one of the plurality of electrical storage devices, and the first sealing member. ### Claim 8 (depends on 7) The electrical storage module according to claim 7, further comprising a second resin member, wherein, the holder further includes a second sealing member provided on a second portion of the inner circumferential surface assigned to the second housing portion, and the second resin member is housed in a second space demarcated by the second portion of the inner circumferential surface assigned to the second housing portion, the outer circumferential surface of the corresponding one of the plurality of electrical storage devices, and the second sealing member. ### Claim 9 (depends on 8) The electrical storage module according to claim 8, wherein the second space extends from the second sealing member toward the second end surface. ### Claim 10 (depends on 8) The electrical storage module according to claim 8, wherein the second space extends from the second sealing member toward the first end surface. ### Claim 11 (depends on 1) The electrical storage module according to claim 1, further comprising a collector electrically connecting the plurality of electrical storage devices to one another, wherein an opening of each of the plurality of housing parts is provided at an end surface of the holder, the first resin member extends from the space to an end surface of the holder through the opening of each of the plurality of housing parts, and the collector contacts the end surface of the holder via the first resin member. ### Claim 12 (depends on 1) The electrical storage module according to claim 1, wherein the corresponding one of the plurality of electrical storage devices includes a case having an opening, an electrode body housed in the case and including a first electrode and a second electrode, and a sealing member sealing the opening of the case, and the case includes a tubular portion, an opening end provided at the opening at the one end of the tubular portion, and a bottom portion closing a second end of the tubular portion, the first end surface includes an outer surface of the sealing member, and the second end surface includes an outer surface of the bottom portion. ### Claim 13 (depends on 1) The electrical storage module according to claim 1, wherein a tip of a protruding end of the first sealing member is positioned between two ends of each of the plurality of housing parts in the first direction. ### Claim 14 (depends on 1) The electrical storage module according to claim 1, wherein the first resin member protrudes from the outer circumferential surface of the corresponding one of the plurality of electrical storage devices in the first direction. ### Claim 15 (depends on 1) The electrical storage module according to claim 1, wherein the electrical storage module includes a third space located on a side opposite to the first space across the first sealing member in the first direction, and the third space is demarcated by the inner circumferential surface of each of the plurality of housing parts, the outer circumferential surface of the corresponding one of the plurality of electrical storage devices, and the first sealing member. ### Claim 16 (depends on 1) The electrical storage module according to claim 1, wherein the second direction is perpendicular to the first direction. ### Claim 17 (depends on 1) The electrical storage module according to claim 1, wherein each of the plurality of housing parts further has an end surface connected to the inner circumferential surface, and the first resin member is provided continuously on the inner circumferential surface and the end surface. ### Claim 18 (depends on 1) The electrical storage module according to claim 1, wherein another one of the plurality of housing parts houses another corresponding one of the plurality of electrical storage devices therein, the holder includes a portion located between the corresponding one of the plurality of electrical storage devices and the another corresponding one of the plurality of electrical storage devices, the portion of the holder has the inner circumferential surface of each of the plurality of housing parts, an end surface connected to the inner circumferential surface, and another inner circumferential surface which is connected to the end surface and which faces the another corresponding one of the plurality of electrical storage devices, the first resin member is housed in the first space and another space demarcated at least by the another inner circumferential surface of the another one of the plurality of housing parts and the another corresponding one of the plurality of electrical storage devices such that the first resin member is provided continuously on the inner circumferential surface, the end surface and the another inner circumferential surface. ### Claim 19 (depends on 1) The electrical storage module according to claim 1, wherein an angle formed between a third direction perpendicular to a direction in which the top of the first sealing member protrudes from the inner circumferential surface and the first direction is smaller than an angle formed between the third direction and the second direction. ### Claim 20 (depends on 1) The electrical storage module according to claim 1, wherein an angle formed between a fourth direction in which the top of the first sealing member protrudes from the inner circumferential surface and the second direction is smaller than an angle formed between the fourth direction and the first direction.