# US 10,118,504 B2 · Battery system housing with fastener > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,118,504 B2 - Document ID: US10118504B2 - Status: Granted - Kind: B2 - Application number: 15/468,696 - Filed: 2017-03-24 - Published: 2018-03-08 - Granted: 2018-11-06 - Earliest claimed: 2016-09-07 - Assignees: Thunder Power New Energy Vehicle Development Company Limited - Applicants: Thunder Power New Energy Vehicle Development Company Limited - Inventors: Francesco Mastrandrea; Peter Tutzer - Web page: https://patentgrep.com/patent/US10118504B2 ## CPC - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - 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 50/262: with fastening means, e.g. locks - H01M 50/505: comprising a single busbar - H01M 50/522: Inorganic material - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 90/40: Application of hydrogen technology to transportation, e.g. using fuel cells - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - 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 - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A battery pack for an electric vehicle is disclosed. The battery pack includes an upper tray, a first busbar attached to the upper tray, a lower tray, and a second busbar attached to the lower tray. The battery pack also includes a plurality of battery cells arranged in the upper and lower trays, and a threaded fastener mechanically connecting the lower tray to the upper tray. ## Claims ### Claim 1 A battery pack for an electric vehicle, the battery pack comprising: an upper tray; a first busbar attached to the upper tray; a lower tray; a second busbar attached to the lower tray; a plurality of battery cells arranged in the upper and lower trays; and a threaded fastener mechanically connecting the lower tray to the upper tray, wherein threads of the threaded fastener are threaded into and directly engage either of the lower tray and the upper tray, and wherein the threaded fastener is adjacent to more than four of the battery cells. ### Claim 2 (depends on 1) The battery pack of claim 1, wherein the threaded fastener is configured to connect the lower tray to the upper tray with a protrusion. ### Claim 3 (depends on 2) The battery pack of claim 2, wherein the protrusion is configured to transfer a vertical force between the upper and lower trays. ### Claim 4 (depends on 3) The battery pack of claim 3, wherein while the protrusion transfers the vertical force between the upper and lower trays, the battery cells transfer substantially no force between the upper and lower trays. ### Claim 5 (depends on 2) The battery pack of claim 2, wherein the protrusion is at least partly integrated with the lower tray. ### Claim 6 (depends on 2) The battery pack of claim 2, wherein the protrusion is at least partly integrated with the upper tray. ### Claim 7 (depends on 2) The battery pack of claim 2, wherein the protrusion is separate from the upper and lower trays. ### Claim 8 A method of manufacturing a battery pack for an electric vehicle, the method comprising: attaching a busbar to an upper tray; attaching first sides of a plurality of battery cells to the upper tray; attaching a busbar to a lower tray; attaching second sides of the battery cells to the lower tray; and connecting the lower tray and the upper tray with a threaded fastener, wherein threads of the threaded fastener are threaded into and directly engage either of the lower tray and the upper tray, and wherein the threaded fastener is adjacent to more than four of the battery cells. ### Claim 9 (depends on 8) The method of claim 8, wherein the threaded fastener is configured to connect the lower tray to the upper tray with a protrusion. ### Claim 10 (depends on 9) The method of claim 9, wherein the protrusion is configured to transfer a vertical force between the upper and lower trays. ### Claim 11 (depends on 10) The method of claim 10, wherein while the protrusion transfers the vertical force between the upper and lower trays, the battery cells transfer substantially no force between the upper and lower trays. ### Claim 12 (depends on 9) The method of claim 9, wherein the protrusion is at least partly integrated with the lower tray. ### Claim 13 (depends on 9) The method of claim 9, wherein the protrusion is at least partly integrated with the upper tray. ### Claim 14 (depends on 9) The method of claim 9, wherein the protrusion is separate from the upper and lower trays. ### Claim 15 An electric vehicle powered by a battery pack, the battery pack comprising: an upper tray; a first busbar attached to the upper tray; a lower tray; a second busbar attached to the lower tray; a plurality of battery cells arranged in the upper and lower trays; and a threaded fastener mechanically connecting the lower tray to the upper tray, wherein threads of the threaded fastener are threaded into and directly engage either of the lower tray and the upper tray, and wherein the threaded fastener is adjacent to more than four of the battery cells. ### Claim 16 (depends on 15) The electric vehicle of claim 15, wherein the threaded fastener is configured to connect the lower tray to the upper tray with a protrusion. ### Claim 17 (depends on 16) The electric vehicle of claim 16, wherein the protrusion is configured to transfer a vertical force between the upper and lower trays. ### Claim 18 (depends on 17) The electric vehicle of claim 17, wherein while the protrusion transfers the vertical force between the upper and lower trays, the battery cells transfer substantially no force between the upper and lower trays. ### Claim 19 (depends on 16) The electric vehicle of claim 16, wherein the protrusion is at least partly integrated with the lower tray. ### Claim 20 (depends on 16) The electric vehicle of claim 16, wherein the protrusion is at least partly integrated with the upper tray. ### Claim 21 (depends on 16) The electric vehicle of claim 16, wherein the protrusion is separate from the upper and lower trays.