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US 8,012,619 B2Granted
Establishing space between end of center gas pipe in battery and bottom of battery can
AssigneeLenovo (Singapore) Pte. Ltd.
InventorsJeremy Robert Carlson, Larry Glenn Estes, Joseph Anthony Holung, Timothy Humphrey, Tin-Lup Wong, Bouziane Yebka
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Abstract
The gap between the bottom of a center gas vent pipe in a battery cell and the bottom of the cell can is established to be at least a minimum distance to reduce the risk of battery damage from inadequate gas venting.
Claims18
A battery, comprising:
- at least one battery cell having at least one gas vent pipe defining an open bottom into which gas can pass;
- at least one cell can holding the pipe within battery cell structure, a gap being established between at least a portion of a bottom periphery of the pipe and the battery can to reduce the risk of battery damage from inadequate gas venting;
- wherein the gap is established to be at least a predetermined fraction of a transverse dimension parameter of the pipe;
- and
- wherein the transverse dimension parameter is a diameter and the fraction is no more than one-third.
2 more elements
Apparatus comprising:
- a system to be powered;
- and
- a battery electrically connected to the system to power electrical components thereof, the battery comprising:
- at least one battery cell having at least one gas vent pipe defining an open bottom into which gas can pass;
- at least one cell can holding the pipe within battery cell structure, a gap being established between at least a portion of a bottom periphery of the pipe and the battery can to reduce the risk of battery damage from inadequate gas venting;
- wherein the gap is established to be at least a predetermined fraction of a transverse dimension parameter of the pipe;
- and
- wherein the transverse dimension parameter is a diameter and the fraction is less than one.
5 more elements
Dependencies are inferred from the claim text.