Thermal runaway control system for lithium ion battery pack of new energy automobile, and battery pack

A technology for lithium-ion batteries and new energy vehicles, applied in battery temperature control, battery/fuel cell control devices, batteries, etc., can solve problems such as increased pressure, threats to the life and property safety of users, and heat accumulation in lithium-ion batteries , to achieve the effect of reducing the intensity of the reaction

Active Publication Date: 2017-08-18
TIANJIN ENERGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patented technology described in the current design of Lithium ion batteries used in these types of vehicle are improved safety during overheating situations caused by excess temperatures or other factors that could damage them due to their internal components being damaged when they get too hot. This helps prevent accidents such as fires or explosions from happening even if there're no external sources controlling it out properly.

Problems solved by technology

This patented technical solution described by our researchers addresses issues related to how quickly or slowly the temperature within Li - ion batteries increases when they get too hot during use. It proposs ways to control these temperatures effectively without affecting their performance significantly over time.

Method used

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  • Thermal runaway control system for lithium ion battery pack of new energy automobile, and battery pack
  • Thermal runaway control system for lithium ion battery pack of new energy automobile, and battery pack
  • Thermal runaway control system for lithium ion battery pack of new energy automobile, and battery pack

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Embodiment Construction

[0028] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as

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Abstract

The invention provides a thermal runaway control system for a lithium ion battery pack of a new energy automobile, and the battery pack. The control system comprises a water pump, a water tank and at least two groups of battery packs; each battery pack is matched with a three-way valve which is controlled and gated by a BMS; each battery pack liquid cooling plate is provided with a discharging valve which also can be controlled to be opened by the BMS; and a floating pipeline, which can be lowered along with a liquid surface and is connected with inlet water and outlet water of the water tank, is arranged in the water tank. By means of controlling the flow of the water pump and the flowing direction of an anti-freezing solution, the battery pack in thermal runaway can be full by the anti-freezing solution within 10s; when battery pack thermal runaway occurs in certain several packs, the liquid cooling plate valve in the battery pack in thermal runaway is controlled to be opened, and meanwhile, the three-way valves of other packs are controlled to be connected with the water tank; and therefore, spreading of heat to other battery packs can be blocked by means of controlling the thermal runway of a single battery pack or a few battery packs.

Description

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Claims

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Application Information

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Owner TIANJIN ENERGIES
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