Thermal processing method and device of power battery and electric vehicle

A heat treatment method and power battery technology, applied to secondary batteries, battery temperature control, circuits, etc., can solve the problems of single temperature control of power batteries, low reliability and safety, and insufficient fast and accurate control of power batteries. Reduced performance and improved user experience

Active Publication Date: 2017-10-24
BEIJING ELECTRIC VEHICLE
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Problems solved by technology

[0004] However, the above method controls the temperature of the power battery relatively simple, and cannot timely and accurately collect the real temperature of the power battery, resulting in insufficient fast and accurate control of the power battery, which affects the performance and service life of the power battery, and even has potential safety hazards. Low sex and security

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  • Thermal processing method and device of power battery and electric vehicle
  • Thermal processing method and device of power battery and electric vehicle
  • Thermal processing method and device of power battery and electric vehicle

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Embodiment Construction

[0054] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0055]The present invention is mainly aimed at the fact that in the prior art, the power battery cannot be regulated to the optimal working temperature in time and accurately under the condition of overheating or overcooling temperature, resulting in reduced performance, reliability and safety, shortened service life, and even To solve the problem of safety risks, a heat treatment method for power batteries is proposed. The power battery heat treatment method proposed by the present invention first obtains the current working sta...

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Abstract

The invention proposes a thermal processing method and device of a power battery and an electric vehicle. The method comprises the steps of acquiring current working condition information of the power battery; determining heat generation quantity of the power battery within a future preset time slot by a preset rule according to the current working condition information; and adjusting a working condition of temperature control equipment according to the heat generation quantity of the power battery within the future preset time slot. By the method, the current working condition of the power battery is achieved, the temperature of the power battery is controlled in advance, the situation that the performance of the power battery is reduced due to excessive high or excessive low temperature is prevented, the reliability and the safety of the power battery are improved, and an application experience of a user is enhanced.

Description

technical field [0001] The invention relates to the technical field of power battery management, in particular to a heat treatment method and device for a power battery and an electric vehicle. Background technique [0002] As the main energy storage element of electric vehicles, the power battery is a key component of electric vehicles, which directly affects the good performance of electric vehicles. However, during actual use, changes in temperature can have varying degrees of impact on the performance of the power battery. For example, when the temperature is too low, the capacity of the power battery is greatly reduced. If the power battery is charged at this time, an irreversible crystallization reaction is likely to occur, resulting in an internal short circuit of the power battery; when the temperature is too high, the power battery is charged or When discharging, the calorific value will rise sharply, and even thermal runaway will occur. [0003] In this regard, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/63H01M10/635
CPCH01M10/613H01M10/615H01M10/625H01M10/63H01M10/635Y02E60/10
Inventor 马建新丑丽丽徐志峰周炳峰
Owner BEIJING ELECTRIC VEHICLE
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