US 10,121,998 B2Granted

Lithium battery with exhaust structure

AssigneeAmita Technologies Inc Ltd.

InventorsJing-Yih Cherng, Pin-Shiuan Li, Tsung-Tien Cheng

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Abstract

A lithium battery cell capable of exhausting a gas includes a battery cell with an opening for discharging the gas, and an exhaust structure combined to the battery cell and having a tube sleeve, a stop portion and a plug. The tube sleeve is installed to the opening of the battery cell; the stop portion is disposed at an end of the tube sleeve and has an exhaust end communicated with the tube sleeve and the outside; the plug is installed into the tube sleeve to block a side opening of the tube sleeve, blocked by the stop portion to prevent it from separating from the tube sleeve, and pushed by the gas to release its connection with the tube sleeve; and a gap is formed between the plug and the tube sleeve to allow the gas to flow through and exit from the exhaust vent to the outside.

Claims12

Dependent claims

A lithium battery with an exhaust structure, comprising:

a battery cell, having an opening for discharging a gas;
and
an exhaust structure, combined with the battery cell, and comprising:
a tube sleeve, passed and installed onto the opening of the battery cell;
a stop portion, disposed at an end of the tube sleeve, and having an exhaust vent communicating with the tube sleeve and an external environment;
and
a plug, pressed and installed into the tube sleeve, for plugging and blocking a side opening of the tube sleeve, and blocked by the stop portion to prevent the plug from separating from the tube sleeve, and being pushed by the gas and released from the connection with the tube sleeve, and a gap being formed between the plug and an inner wall face of the tube sleeve, and the gas flowing out from the gap and flowing from the exhaust vent to the external environment.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/588,673Filed 7 May 2017
Priority: TW 105206970 U13 May 2016
Published: US 2017/0331088 A116 Nov 2017
Granted: 6 Nov 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H01M 50/308
Arrangements for facilitating escape of gases: detachable arrangements, e.g. detachable vent plugs or plug systems
H01M 10/052
Accumulators with non-aqueous electrolyte: li-accumulators
H01M 10/0525
Li-accumulators: rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 50/211
Characterised by their shape: adapted for pouch cells

Family

US 2017/0331088 A1Pre-grant publication · published 16 Nov 2017
US 10,121,998 B2This patent

From the US filing history. Foreign family members aren’t listed.

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