# US 12,597,630 B2 · Batteries with non-rectangular shapes for augmented reality devices, and systems and methods of use thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,597,630 B2 - Document ID: US12597630B2 - Status: Granted - Kind: B2 - Application number: 18/677,757 - Filed: 2024-05-29 - Published: 2025-02-27 - Granted: 2026-04-07 - Earliest claimed: 2023-08-21 - Assignees: Meta Platforms Technologies, LLC - Applicants: Meta Platforms Technologies, LLC - Inventors: Tianren Xu; Bradley Spare; Karthik Kadirvel; Jason Howard; Wei Wang - Web page: https://patentgrep.com/patent/US12597630B2 ## CPC - H01M 10/0436: {Small-sized flat cells or batteries for portable equipment} - G02B 27/017: {Head mounted} - G02B 27/0176: {characterised by mechanical features} - H01M 50/119: Metals - G02B 2027/0178: {Eyeglass type (eyeglass details G02C)} - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract An example augmented-reality headset comprises a frame portion, a temple arm portion coupled with the frame portion, and a metal-encased battery cell having an exterior surface that defines a non-rectangular shape. The metal-encased battery cell is configured to be housed within the temple arm portion, and the non-rectangular shape of the exterior surface follows an interior shape of an internal surface of the temple arm portion. The augmented-reality headset also comprises one or more artificial-reality processing or presentation devices, wherein at least one of the one or more artificial-reality processing or presentation devices is configured to receive power from the metal-encased battery cell. ## Claims ### Claim 1 An augmented-reality headset, comprising: a frame portion; a temple arm portion coupled with the frame portion; a metal-encased battery cell having an exterior surface that defines a non-rectangular shape, wherein: the metal-encased battery cell is configured to be housed within the temple arm portion; the metal-encased battery cell tapers in thickness across two axes; and the non-rectangular shape of the exterior surface follows an interior shape of an internal surface of the temple arm portion; and one or more artificial-reality processing or presentation devices, wherein at least one of the one or more artificial-reality processing or presentation devices is configured to receive power from the metal-encased battery cell. ### Claim 2 (depends on 1) The augmented-reality headset of claim 1, wherein the interior shape is a first interior shape of the internal surface of the temple arm portion, and the augmented-reality headset further comprises: another metal-encased battery cell having another exterior surface that defines another non-rectangular shape, wherein: the other metal-encased battery cell is configured to be housed within the temple arm portion, and the other non-rectangular shape of the exterior surface follows a second interior shape of the internal surface of the temple arm portion; and at least one of the one or more artificial-reality processing or presentation devices is configured to receive power from the other metal-encased battery cell. ### Claim 3 (depends on 1) The augmented-reality headset of claim 1, further comprising: another temple arm portion, distinct from the temple arm portion, coupled with the frame portion; another metal-encased battery cell having another exterior surface that defines another non-rectangular shape, wherein: the other metal-encased battery cell is configured to be housed within the other temple arm portion; and the other non-rectangular shape of the other exterior surface follows another interior shape of another internal surface of the other temple arm portion; and at least one of the one or more artificial-reality processing or presentation devices is configured to receive power from the other metal-encased battery cell. ### Claim 4 (depends on 1) The augmented-reality headset of claim 1, wherein at least one edge of the metal-encased battery cell has a chamfered edge, wherein the chamfered edge is configured to further conform to the interior shape of the internal surface of the temple arm portion. ### Claim 5 (depends on 1) The augmented-reality headset of claim 1, wherein at least one edge of the metal-encased battery cell has a chamfered edge, wherein the chamfered edge is shaped to accommodate at least one of the one or more artificial-reality processing or presentation devices within the temple arm portion. ### Claim 6 (depends on 5) The augmented-reality headset of claim 5, wherein the at least one of the one or more artificial-reality processing or presentation devices is a speaker, and the chamfered edge of the metal-encased battery cell is shaped and sized to allow for the speaker to at least partially overlap the chamfered edge within the temple arm portion. ### Claim 7 (depends on 1) The augmented-reality headset of claim 1, wherein the frame portion includes at least two semi-transparent lenses configured to allow for environmental light to pass through. ### Claim 8 (depends on 1) The augmented-reality headset of claim 1, further comprising: another metal-encased battery cell having another exterior surface that defines another non-rectangular shape, wherein: the other metal-encased battery cell is configured to be housed within the frame portion; and the other non-rectangular shape of the other exterior surface follows another interior shape of another internal surface of the frame portion; and at least one of the one or more artificial-reality processing or presentation devices is configured to receive power from the other metal-encased battery cell. ### Claim 9 (depends on 1) The augmented-reality headset of claim 1, wherein the metal-encased battery cell includes at least one mounting component configured to secure the metal-encased battery cell to the temple arm portion, wherein the mounting component is one or more of: hooks, tabs, springs, and screws. ### Claim 10 (depends on 1) The augmented-reality headset of claim 1, wherein the metal-encased battery cell includes a surface that is hemispherical. ### Claim 11 (depends on 1) The augmented-reality headset of claim 1, wherein the metal-encased battery cell is made of steel. ### Claim 12 (depends on 1) The augmented-reality headset of claim 1, wherein the metal-encased battery cell has a flangeless sealing construction, thereby increasing a battery cell area of the metal-encased battery cell that can be housed within the temple arm portion as compared to a battery cell that did use a flange-based construction. ### Claim 13 (depends on 12) The augmented-reality headset of claim 12, wherein the metal-encased battery cell comprises at least two metal casings that are laser welded together. ### Claim 14 (depends on 1) The augmented-reality headset of claim 1, wherein the metal-encased battery cell has a metal-based wall thickness of between 100-300 micrometers (μm). ### Claim 15 (depends on 1) The augmented-reality headset of claim 1, wherein the metal-encased battery has a largest cross-sectional dimension of at least 6 millimeters (mm) and a smallest cross-sectional dimension of at least 2.5 mm. ### Claim 16 (depends on 1) The augmented-reality headset of claim 1, wherein the metal-encased battery cell has a stacked electrode design, wherein electrodes in the stacked electrode design are die-cut with varying size as they are layered. ### Claim 17 A metal-encased battery cell, comprising: an exterior surface that defines a non-rectangular shape, wherein: the metal-encased battery cell is configured to be housed within a temple arm portion, wherein the metal-encased battery cell tapers in thickness across two axes; and the non-rectangular shape of the exterior surface follows an interior shape of an internal surface of a temple arm portion; and the metal-encased battery is configured to be coupled with one or more artificial-reality processing or presentation devices, wherein at least one of the one or more artificial-reality processing or presentation devices is configured to receive power from the metal-encased battery cell. ### Claim 18 A temple arm of an augmented-reality headset, comprising: a metal-encased battery cell having an exterior surface that defines a non-rectangular shape, wherein: the metal-encased battery cell is configured to be housed within the temple arm portion, wherein the metal-encased battery cell tapers in thickness across two axes; and the non-rectangular shape of the exterior surface follows an interior shape of an internal surface of the temple arm portion; and one or more artificial-reality processing or presentation devices, wherein at least one of the one or more artificial-reality processing or presentation devices is configured to receive power from the metal-encased battery cell.