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High voltage battery for vehicles

A high-voltage battery and vehicle technology, applied in the direction of batteries, battery boxes/coats, battery pack components, etc., can solve problems such as thermal runaway, reduced vehicle driving safety, and lack of safety devices, etc., to achieve the effect of battery-level safety

Active Publication Date: 2015-06-24
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem with conventional pouched Li-ion batteries is that the sheath of the battery has low physical strength, and the battery does not have battery-level safety devices (current interrupt device (CID), positive temperature coefficient (PTC), fuses, etc. ), making it difficult to achieve the safety required for batteries with high energy storage capacity
Specifically, when a vehicle battery is overcharged, gas is generated in the battery, and the temperature inside the battery rises, so thermal runaway may occur in materials inside the battery, causing a fire
In addition, during the operation of the vehicle, even if an abnormal battery reaction occurs in only one unit cell, an abnormal voltage can easily be generated in the battery pack, thereby reducing the driving safety of the vehicle

Method used

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  • High voltage battery for vehicles
  • High voltage battery for vehicles
  • High voltage battery for vehicles

Examples

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Embodiment Construction

[0021] Exemplary embodiments of the present invention are hereinafter described in detail with reference to the accompanying drawings.

[0022] figure 1 is a view of a high-voltage battery for a vehicle according to an embodiment of the present invention. figure 2 is a view of a CID used as an overcharge safety device for a high-voltage battery for a vehicle according to an embodiment of the present invention. Figure 3 to Figure 5 is a view of the operation of the high voltage battery for a vehicle according to the embodiment of the present invention.

[0023] The present invention is provided to achieve battery-level safety of a pouched battery and driving safety of a vehicle. The high voltage battery for a vehicle according to the present invention includes an electrode tab 200 divided into a first part 210 placed close to the battery cell and a second part 220 placed close to a terminal (not shown). The first portion extension 320 extends from the first portion 210 and...

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PUM

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Abstract

A high voltage battery for vehicles includes an electrode tab that is divided into a first part placed near a battery cell, and a second part placed near a terminal. A first part extension extends from the first part and is fixed to a lower pouch. A second part extension extends from the second part, comes into contact with the first part extension, has elasticity, and is fixed at an upper end thereof to an upper pouch. A hook part extends from the first part extension and holds the second part extension by grasping an edge of the second part extension.

Description

technical field [0001] The present invention generally relates to a high-voltage battery for a vehicle that can utilize a pouch-type current interrupt device (CID) to achieve the safety of a pouched battery, thereby improving the marketability of the battery for a vehicle. Background technique [0002] In recent years, with the increasing application of bagged lithium-ion batteries, the energy density of the battery and the energy storage capacity of the unit cell have gradually increased. In particular, in order to meet demands brought about by an increase in vehicle mileage, research has been actively conducted in recent years to improve the energy storage capability of lithium-ion batteries for vehicles. However, the problem with conventional pouched lithium-ion batteries is that the sheath of the battery has a low physical strength, and the battery does not have battery-level safety devices (interrupting device (CID), positive temperature coefficient (PTC), fuse, etc. )...

Claims

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Application Information

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IPC IPC(8): H01M2/20H01M2/34H01M50/178H01M50/548
CPCH01M2220/20H01M2200/20Y02E60/10H01M50/103H01M50/578H01M50/178H01M50/548H01M50/531H01M50/543H01M50/20
Inventor 安胜浩崔诚珉闵泓锡
Owner HYUNDAI MOTOR CO LTD
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