公开(公告)号：US20240288364A1

公开(公告)日：2024-08-29

申请号：US18584024

申请日：2024-02-22

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Prince Ashwin Kumar Anburaj JAYAKUMAR ,  Nirmal A KUMAR ,  Shridhara SHANBHOGUE ,  M Kantha Raj URS

IPC: G01N21/3518 ,  G01N33/00 ,  G02B6/02 ,  H01M10/48

CPC classification number: G01N21/3518 ,  G01N33/0047 ,  G02B6/0208 ,  H01M10/48 ,  G01N2201/088

Abstract: An example system, method, and computer program product for detecting thermal runaway in a battery cell is provided. The example system includes a light source configured to emit light across a spectrum of wavelengths toward a sensing fiber having a first end and a second end. The sensing fiber may be positioned to receive the light emitted by the light source at the first end. The sensing fiber may further contain a filtering mechanism configured to reflect a portion of the spectrum of wavelengths of the light. In addition, the sensing fiber may be optically coupled to a photodiode at the second end, such that a portion of the light is reflected as the light travels through the sensing fiber. The gas may be detected based at least in part on an intensity of the light received at the photodiode indicating the onset of thermal runaway.

公开(公告)号：US20240128529A1

公开(公告)日：2024-04-18

申请号：US18480229

申请日：2023-10-03

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Prince Ashwin Kumar Anburaj JAYAKUMAR ,  Nirmal A KUMAR

IPC: H01M10/48 ,  H01M10/42 ,  H01M50/375 ,  H01M50/449

CPC classification number: H01M10/486 ,  H01M10/4235 ,  H01M50/375 ,  H01M50/449 ,  H01M2200/10

Abstract: An battery cell, a battery cell hazard detection system, and a method for detecting a hazardous battery condition at an early stage is provided. An example battery cell may include a battery cell package defining an interior compartment of the battery cell. The battery cell may further include an anode disposed in the interior compartment of the battery cell, a cathode disposed in the interior compartment of the battery cell, and a separator positioned between the anode and the cathode. A chemical coating may be disposed on the surface of the separator, such that, in an instance in which an interior temperature within the interior compartment of the battery cell exceeds a pre-determined maximum operating temperature, the chemical coating may evaporate, forming a chemical coating vapor indicating to a sensing device the hazardous condition of the battery cell.