公开(公告)号：US20230400361A1

公开(公告)日：2023-12-14

申请号：US17528151

申请日：2021-11-16

Applicant: Meta Platforms Technologies, LLC

Inventor： Rajat Mittal ,  Ethan Chen ,  Samvit Monga ,  Mark Shintaro Ando ,  Adam Alan Mudrick ,  Jason Howard

IPC: G01K7/24 ,  H01M10/48 ,  H01M10/42

CPC classification number: G01K7/24 ,  H01M10/486 ,  H01M10/425 ,  H01M10/482 ,  H01M2010/4271

Abstract: Provided is a method of estimating temperature in a device including a main printed circuit board (PCB), a protection and control module (PCM), and one or more batteries electrically connected to the PCM. The method includes sensing a temperature of the PCB, via a PCB temperature sensor and sensing a temperature of the PCM via a PCM temperature sensor. The method also includes estimating a temperature of at least one of the batteries based on (i) the temperature determined via the PCB temperature sensor and (ii) the temperature determined via the PCM temperature sensor.

公开(公告)号：US20230223663A1

公开(公告)日：2023-07-13

申请号：US16544500

申请日：2019-08-19

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Karthik Kadirvel ,  Jason Howard ,  Myuran Kangatharalingam

IPC: H01M2/26 ,  H01M2/20 ,  H01M2/10 ,  H01M10/0525 ,  H01M10/0585

CPC classification number: H01M2/266 ,  H01M2/204 ,  H01M2/1061 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2220/30

Abstract: A battery system includes a plurality of battery cells connected in parallel. Each battery cell includes a pair of positive and negative tabs extending from each of two opposing sides. The battery system also includes one or more pairs of adjacent joining pads, each pair connecting the positive and negative tabs of adjacent battery cells. The battery system also includes a terrace portion. The positive tab and the negative tab corresponding to one side of a battery cell at one end of the parallel connection extend out onto the terrace portion. A pair of bus-bars placed in the terrace portion allow the extension of the tabs. Each joining pad is made of a flexible material so as to allow the positive and negative tabs of adjacent battery cells to bend around the respective joining pad. The battery system can be configured in various shapes, such as curved.

公开(公告)号：US11431042B2

公开(公告)日：2022-08-30

申请号：US17014861

申请日：2020-09-08

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Karthik Kadirvel ,  Jason Howard ,  Michael Xingyi Yu ,  Bryan W. Fan

IPC: H01M10/637 ,  H01M10/04 ,  H01M10/0583

Abstract: A battery system includes a plurality of battery cells connected in parallel. Each battery cell includes a positive and negative tab. The battery system also includes a plurality of thermal switch devices (e.g., temperature cut off (TCO) or positive temperature coefficient (PTC) devices). Each thermal switch device is electrically coupled to a respective cell. The battery system further includes a rigid-flex circuit board comprising a plurality of rigid regions. Each rigid region is physically and electrically connected to an adjacent rigid region by a respective flexible region. Each rigid region is electrically coupled to respective positive and negative tabs of a respective battery cell. Each thermal switch device prevents abnormal current flow (e.g., by limiting the flow of current at high temperatures) between a first battery cell that is coupled to the thermal switch device and a second battery cell that is adjacent to the first battery cell.

公开(公告)号：US12278384B2

公开(公告)日：2025-04-15

申请号：US17714981

申请日：2022-04-06

Applicant: Meta Platforms Technologies, LLC

Inventor： Jason Howard ,  Douglas Moskowitz

IPC: H01M50/213 ,  H01M10/02 ,  H01M50/107 ,  H01M50/244 ,  H01M50/247 ,  H01M50/531

Abstract: Curved battery cells are described. The curved battery cells include first and second curved battery cells having complementary curvatures. The curved battery cells are housed in battery pack housing that has a curvature that complements the curvatures of the curved battery cells. An adhesive layer is be configured to adhere at least one of the first curved battery cell or the second curved battery cell to a curved surface of the battery pack housing.

公开(公告)号：US20240053796A1

公开(公告)日：2024-02-15

申请号：US18495232

申请日：2023-10-26

Applicant: Meta Platforms Technologies, LLC

Inventor： Jason Howard ,  Thomas Christopher Frey ,  Karthik Kadirvel

IPC: G06F1/16

CPC classification number: G06F1/163

Abstract: The disclosed adjustable strap apparatus may include a left strap having a first rack member and a right strap having a second rack member. An electrical unit may have an opening through which a shaft passes. A pinion member may be affixed to a proximal end of the shaft and may be adapted to (a) engage the first rack member and the second rack member and (b) translate the first rack member and the second rack member in opposite directions via rotation of the shaft. A ratcheting member may be coupled to a distal end of the shaft and may include one or more pawls adapted to prevent rotation of the shaft when engaged. Various other methods, systems, and devices are also disclosed.

公开(公告)号：US20230411743A1

公开(公告)日：2023-12-21

申请号：US17899286

申请日：2022-08-30

Applicant: Meta Platforms Technologies, LLC

Inventor： Tianren Xu ,  Karthik Kadirvel ,  Hyung Gu Yun ,  Jason Howard

IPC: H01M50/136 ,  H01M4/70 ,  H01M50/46

CPC classification number: H01M50/136 ,  H01M4/70 ,  H01M50/46 ,  H01M2004/021

Abstract: A flexible battery comprising (1) at least one positively charged layer, (2) at least one negatively charged layer, (3) a coated electrode segment that includes a segment of the positively charged layer and a segment of the negatively charged layer, and (4) an additional coated electrode segment movably coupled to the coated electrode segment, wherein the additional coated electrode segment includes an additional segment of the positively charged layer and an additional segment of the negatively charged layer. Various other apparatuses, devices, systems, and methods are also disclosed.