Battery cell containment and venting
AssigneeLenovo (Singapore) Pte. Ltd.
InventorsJoseph Anthony Holung, Tin-Lup Wong, Bouziane Yebka
Life of this patent
Estimating the term…
Abstract
A battery has a casing holding plural cells and a mesh wrapped around the cells to contain pieces of an exploding cell within the casing. To prevent overpressurization of the casing from the gas emitted by an exploding cell, a pressure relief feature is provided that allows gas to pass through battery casing.
Claims29
Battery comprising:
- plural battery cells;
- an outer casing holding the cells;
- a mesh surrounding the cells to contain cell parts should a cell explode, the mesh being porous to gas emitted by the cells such that the gas can pass through the mesh to the casing;
- and
- at least one pressure relief feature arranged to permit gas to pass through the casing when pressure in the casing exceeds a threshold.
A battery comprising:
- a mesh material wrapped around at least part of the battery;
- and
- at least one relief feature capable of allowing gas to pass from a battery cell through battery casing.
A method to contain pieces of an exploding battery cell within a battery casing while preventing overpressurization of the casing, comprising constraining the cell in the casing using structure within the casing and providing a gas vent through the casing.
Apparatus comprising:
- a system to be powered;
- and
- a battery electrically connected to the system to power electrical components thereof, the battery comprising:
- plural battery cells;
- an outer casing holding the cells;
- a mesh surrounding the cells to contain cell parts should a cell explode, the mesh being porous to gas emitted by the cells such that the gas can pass through the mesh to the casing;
- and
- at least one pressure relief feature arranged to permit gas to pass through the casing when pressure in the casing exceeds a threshold.
Dependencies are inferred from the claim text.