US 2019/0296289 A1Published application

Battery pack

AssigneeToyota Jidosha Kabushiki Kaisha

InventorsSatomi YAMAMOTO, Koichi TANIMOTO

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Abstract

Provided by the present disclosure is a batten pack in which both battery performance and durability of an all solid state battery are improved. Provided is a battery pack provided with a plurality of single batteries and a constraining mechanism. The constraining mechanism constrains the arranged single batteries in such a way that stress exists in the direction of compression along the arrangement direction. In addition, in a direction which intersects the arrangement direction, when a direction in which the external connection terminals extend is deemed to be a first direction and the direction opposite the first direction is deemed to a second direction, the constraining mechanism is configured in such a way that the stress increases from the first direction towards the second direction.

Claims6

Dependent claims

A battery pack comprising:

a plurality of single batteries, in each of which an electrode plate and a solid electrolyte layer are housed in a battery case and which are arranged in a thickness direction of the electrode plates and solid electrolyte layers as an arrangement direction, and
a constraining mechanism that constrains the arranged plurality of single batteries in such a way that stress exists in a direction of compression along the arrangement direction, wherein
each of the single batteries is provided with external connection terminals that are connected to the electrode plates and extend to a outer part of the battery case, and
when a direction in which the external connection terminals extend is deemed to be a first direction and a direction opposite the first direction is deemed to a second direction,
the constraining mechanism is configured in such a way that the stress increases from the first direction towards the second direction.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/361,603Filed 22 Mar 2019
Priority: JP 2018-05863326 Mar 2018
Published: 26 Sep 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

H01M 10/0413
Construction or manufacture in general: large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
H01M 10/0525
Li-accumulators: rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/0481
Construction or manufacture in general: compression means other than compression means for stacks of electrodes and separators
H01M 50/211
Characterised by their shape: adapted for pouch cells