Browse Prior Art Database

Shredder for Li-Ion devices in case of fire/burn onboard an aircraft

IP.com Disclosure Number: IPCOM000250144D
Publication Date: 2017-Jun-06
Document File: 1 page(s) / 483K

Publishing Venue

The IP.com Prior Art Database

Related Documents

Shredder for Li-Ion devices in case of fire/burn onboard an aircraft: IP.COM

Abstract

The risk of uncontained fire/burn in an aircraft is known from Li-Ion based hand held devices, e.g. the Galaxy S7 and it is continuously described in the news.

The discussions in the news are focusing on mobile equipment electric energy storages (accumulators) using Li-Ion technology. In case of abnormal behavior these electric energy storage devices are risky in case of fire. It is of high difficulty to control or to extinguish these devices in case of fire.

The herein proposed idea is to shredder the energy storage or the whole personal device in small pieces.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 70% of the total text.

Shredder for Li-Ion devices in case of fire/burn onboard an aircraft

The risk of uncontained fire/burn in an aircraft is known from Li-Ion based hand held devices, e.g. the Galaxy S7 and it is continuously described in the news. The discussions in the news are focusing on mobile equipment electric energy storages (accumulators) using Li-Ion technology. In case of abnormal behavior these electric energy storage devices are risky in case of fire. It is of high difficulty to control or to extinguish these devices in case of fire. The transportation of Li-Ion batteries in the cargo area of an aircraft is forbidden due to the described effects. Different types of rechargeable Li-Ion energy storages are carried inside the cabin. The way to handle these devices in case of abnormal behavior like smoke or fire is normally done by the cabin crew following recommended procedures. The main purpose is to cool the device and keep the temperature as low as possible. This will minimize the thermal effect inside the Li-Ion accumulator. Nevertheless, extinguishing a Li-Ion based fire with water can cause a thermal runaway. The herein proposed idea is to shredder the energy storage or the whole personal device in small pieces. By destroying the accumulator

• the electrical connections between each Li-Ion cell is opened,

• the thermal package is opened decreasing the temperature, and

• the accumulator is able to vent eliminating the risk of explosion caused by gases and overpressure inside the...