公开(公告)号：US20210367297A1

公开(公告)日：2021-11-25

申请号：US17327091

申请日：2021-05-21

Applicant: DURACELL U.S. OPERATIONS, INC.

Inventor： Mark T. Ashbolt ,  Daniel G. Allen ,  Oleg Podoprigora

IPC: H01M50/184 ,  H01M50/147 ,  H01M50/193

Abstract: A seal assembly for a battery cell includes a grommet having an opening having an inner surface. A nail has a nail head and a stem extending from the stem. The stem includes a first portion with a larger diameter and a second portion with a smaller diameter and the stem extends through the opening in the grommet. The stem and the grommet form a first interference fit at a distal end of the opening. A trap clearance is formed between the distal end of the opening and the nail head. The trap clearance defines a trap for a sealant. A sealant is disposed on the stem and is located at least partially in the trap.

公开(公告)号：US20240079698A1

公开(公告)日：2024-03-07

申请号：US18507821

申请日：2023-11-13

Applicant: DURACELL U.S. OPERATIONS, INC.

Inventor： Mark T. Ashbolt ,  Daniel G. Allen ,  Oleg Podoprigora

IPC: H01M50/184 ,  H01M50/147 ,  H01M50/193

CPC classification number: H01M50/184 ,  H01M50/147 ,  H01M50/193 ,  H01M50/154

Abstract: A seal assembly for a battery cell includes a grommet having an opening having an inner surface. A nail has a nail head and a stem extending from the stem. The stem includes a first portion with a larger diameter and a second portion with a smaller diameter and the stem extends through the opening in the grommet. The stem and the grommet form a first interference fit at a distal end of the opening. A trap clearance is formed between the distal end of the opening and the nail head. The trap clearance defines a trap for a sealant. A sealant is disposed on the stem and is located at least partially in the trap.

公开(公告)号：US11817591B2

公开(公告)日：2023-11-14

申请号：US17327091

申请日：2021-05-21

Applicant: DURACELL U.S. OPERATIONS, INC.

Inventor： Mark T. Ashbolt ,  Daniel G. Allen ,  Oleg Podoprigora

IPC: H01M50/184 ,  H01M50/148 ,  H01M50/171 ,  H01M50/186 ,  H01M50/193 ,  H01M50/147

CPC classification number: H01M50/184 ,  H01M50/147 ,  H01M50/193 ,  H01M50/154 ,  H01M50/171 ,  H01M50/186

Abstract: A seal assembly for a battery cell includes a grommet having an opening having an inner surface. A nail has a nail head and a stem extending from the stem. The stem includes a first portion with a larger diameter and a second portion with a smaller diameter and the stem extends through the opening in the grommet. The stem and the grommet form a first interference fit at a distal end of the opening. A trap clearance is formed between the distal end of the opening and the nail head. The trap clearance defines a trap for a sealant. A sealant is disposed on the stem and is located at least partially in the trap.

公开(公告)号：US10804515B2

公开(公告)日：2020-10-13

申请号：US16058735

申请日：2018-08-08

Applicant: DURACELL U.S. OPERATIONS, INC.

Inventor： Mark Ashbolt ,  Alexander Shelekhin ,  Brien Merrill ,  Oleg Podoprigora ,  Robert S. Ferrin

IPC: H01M2/12 ,  H01M2/02 ,  H01M2/04 ,  H01M2/30

Abstract: Batteries having vents are disclosed. An example battery includes a housing, including: a first terminal and a second terminal. The first terminal includes a cover. The cover includes at least one line of weakness therein. The line of weakness is structured to form an opening when a threshold pressure is satisfied within the housing to enable gas to vent from the housing through the opening. A filter is positioned within the housing and adjacent the cover. The filter has an aperture structured to enable the gas to vent from the housing and to deter solid material housed within the housing from exiting the opening when the threshold pressure is satisfied.

公开(公告)号：US20200052264A1

公开(公告)日：2020-02-13

申请号：US16058735

申请日：2018-08-08

Applicant: DURACELL U.S. OPERATIONS, INC.

Inventor： Mark Ashbolt ,  Alexander Shelekhin ,  Brien Merrill ,  Oleg Podoprigora ,  Robert S. Ferrin

IPC: H01M2/12 ,  H01M2/02 ,  H01M2/04 ,  H01M2/30

Abstract: Batteries having vents are disclosed. An example battery includes a housing, including: a first terminal and a second terminal. The first terminal includes a cover. The cover includes at least one line of weakness therein. The line of weakness is structured to form an opening when a threshold pressure is satisfied within the housing to enable gas to vent from the housing through the opening. A filter is positioned within the housing and adjacent the cover. The filter has an aperture structured to enable the gas to vent from the housing and to deter solid material housed within the housing from exiting the opening when the threshold pressure is satisfied.