Power battery heat treatment method, device and electric vehicle

A heat treatment method and power battery technology, which are applied in secondary batteries, battery temperature control, circuits, etc., can solve the problems of low reliability and safety, single temperature control of power batteries, and inability to collect timely and accurately. The effect of user experience and performance reduction and improvement

Active Publication Date: 2020-12-01
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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  • Power battery heat treatment method, device and electric vehicle
  • Power battery heat treatment method, device and electric vehicle
  • Power battery heat treatment method, device and electric vehicle

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Embodiment Construction

[0054] Embodiments of the present invention will be described in detail below, examples of which are shown in the accompanying drawings, in which the same or similar reference numerals refer to the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0055] The invention mainly aims at the problem that in the prior art, the performance, reliability and safety are reduced, the service life is shortened, and even safety risks exist due to the fact that the power battery cannot be timely and accurately regulated to the optimal working temperature under the condition of overheating or supercooling, and a heat treatment method for the power battery is provided. The heat treatment method of the power battery provided by the invention comprises the following steps: fi...

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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 power battery heat treatment method and device and an electric automobile. technical background [0002] As the main energy storage component of electric vehicle, power battery is the key component of electric vehicle, which directly affects the good performance of electric vehicle. However, in the actual use process, the change of temperature can affect the performance of the power battery to varying degrees. For example, when the temperature is too low, the capacity of the power battery is greatly reduced. If the power battery is charged again at this time, irreversible crystallization reaction will easily occur, resulting in the internal short circuit of the power battery. When the temperature is too high and the power battery is charged or discharged, the calorific value will rise sharply, and even the heat will get out of control. [0003] Therefore, in order t...

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Application Information

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Patent Type & Authority Patents(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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