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Battery isolation apparatus and method

A technology for isolating equipment and storage batteries, which is applied in the field of safety components for energy storage, can solve problems such as transfer and achieve the effect of ensuring safety

Pending Publication Date: 2022-07-12
COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example for a current of 200A, this parasitic resistance corresponds to a loss of 40W, which creates problems of transfer of this power and heat dissipation

Method used

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  • Battery isolation apparatus and method
  • Battery isolation apparatus and method
  • Battery isolation apparatus and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0082] figure 1 and 2 Each shows an example of a circuit in which a battery of accumulators 1 , 15 connected in series powers a load 9 . Load 9 schematically shows any electrical machine or circuit powered by the battery pack.

[0083] figure 1 and 2 The circuit shown is arranged such that one of the batteries (here battery 1 ) is associated with the battery isolation device 2 . The accumulator 1 may be any known type of accumulator, in particular of the lithium-ion type, or with respect to other lithium chemistries like lithium metal, or based on interleaving of other ions like sodium ion or potassium ion chemistry.

[0084] The accumulator 1 may be a unit accumulator (battery cell) or a series and / or parallel mounted accumulator battery. Regardless of the configuration of the battery 1 , the installation shown allows isolation of the battery 1 from the circuit 14 to which it is connected, while ensuring a bypass that allows other batteries 15 to continue to supply the l...

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PUM

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Abstract

A battery isolation device (2) adapted to isolate a battery from an electrical circuit while ensuring the continuity of the electrical circuit, the device comprising:-a bypass chamber (10) in which is arranged a bypass device (4) comprising two bypass conductors (6, 7) separated by a gap (8), one of the bypass conductors being connected to a second terminal (B2), and the other being connected to a third terminal (B2); the other bypass conductor is connected to the third terminal (B3); -a fuse (3) comprising an electrical conductor (23) made of a meltable material connected between the first terminal (B1) and the third terminal (B3), the electrical conductor (23) made of a meltable material being arranged in the bypass chamber (10) and being adapted to be transferred in the liquid state onto the bypass device (4).

Description

technical field [0001] The present invention relates to the field of electrical energy storage management and, more particularly, to safety elements for such energy storage. [0002] Accumulators, in particular electrochemical accumulators, are generally provided in the form of batteries, in which unit elements, generally referred to as batteries, are connected in series and / or in parallel. The association of these cells in series allows for higher voltages, while the association of these cells in parallel allows for higher capacities for more energy storage. [0003] Most battery packs used in various fields such as electric vehicles, electronic devices, power tools, etc. generally include at least one branch of a battery or battery connected in series. Background technique [0004] In known battery packs comprising at least one branch of batteries connected in series, failure of one of the batteries generally renders all batteries of that branch unavailable. [0005] Kno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/24H01M50/249H01M50/543H01M50/583
CPCH01M50/543H01M50/249H01M50/24H01M50/583H02J7/0031Y02E60/10H01M50/572H01M50/51
Inventor 朱利安·肖万达尼埃尔·沙特鲁朱利安·德西弗雷德里克·盖拉德
Owner COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES