High reliability electrochemical energy storage device vibration-proof structure

Abstract

The invention discloses a high reliability electrochemical energy storage device vibration-proof structure. The high reliability electrochemical energy storage device vibration-proof structure comprises an outer shell, an electricity core and a current collector, the electricity core is arranged in the outer shell and electrically connected with the current collector, and an electrolyte is filled between the outer shell and the electricity core. The high reliability electrochemical energy storage device vibration-proof structure is characterized in that a plurality of grooves are arranged on the outer shell, a plurality of elastic parts are disposed on the outer surface of the electricity core, and the position of the electricity core in the outer shell is limited through the grooves and the elastic parts. According to the high reliability electrochemical energy storage device vibration-proof structure, a plurality of elastic sheets are introduced on the electricity core, the grooves are introduced on the outer shell, the electricity core is limited in a three-dimensional direction through the elastic sheets and the grooves, the elastic sheets can buffer the vibration amplitude, the stability of a device at vibration occasions is greatly improved, effectiveness loss caused by loose weld of the welding position between the electricity core and the current collector at the vibration occasions is effectively prevented, and conditions of electrode shelling, uncoiling and the like are effectively prevented.

Description

technical field [0001] The invention relates to an anti-vibration structure of a high-reliability electrochemical energy storage device. Background technique [0002] With the rapid growth of the world's population and the rapid development of the social economy, resources and energy are increasingly scarce, and the ecological environment is deteriorating. Human beings will be more dependent on clean and renewable new energy sources. In the 21st century, higher requirements are placed on energy storage devices. Electrochemical power supplies have been widely used as energy storage devices. With the development of my country's power supply industry, the demand for electrochemical energy storage devices is increasing, and the requirements for their reliability are also getting higher and higher. [0003] In order to adapt to the development of emerging fields such as electric vehicles, the size of electrochemical energy storage devices such as fuel cells, lithium-ion batteries...

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Problems solved by technology

[0004] In the prior art, there is also an anti-vibration structure that restricts the positioning of the internal cells through the annular groove provided on the shell, but this structure cannot buffer the vibration amplitude, and it is still easy to cause electrode powder removal and electrode roll uncoiling

In addition, there is also a structure that cushions the vibration amplitude by setting an elastic clamp between the outer shell and the inner core, but this structure will block the flow of electrolyte

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