Battery pack with controllable heating temperature and battery pack system
A technology for heating temperature and battery packs, applied in secondary batteries, battery pack components, circuits, etc., can solve problems such as poor charging quality of battery packs, avoid poor charging quality, avoid explosion, and improve charging quality Effect
Pending Publication Date: 2018-09-18
HUATING HEFEI POWER TECH
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Problems solved by technology
[0003] In view of this, the present invention provides a battery pack and battery pack system with controllable heating temperature, which can improve the problem of poor charging quality of existing battery packs
Method used
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Embodiment Construction
[0044] The power battery pack is the core component of new energy electric vehicles, and its charge and discharge quality directly affects the safe and reliable operation of new energy electric vehicles.
[0045] After investigation, the inventor found that most of the existing battery packs have poor charging quality. After careful analysis and research, it was found that the main reason for the poor charging quality of the battery pack is that the temperature of the cells in the battery module is difficult to control during the charging process. , For example, for some battery packs, the temperature of the battery core may be too low during charging, resulting in poor charging quality or even failure to charge. For battery packs with heating devices, it is difficult to control the temperature of the heating device. The process of heating with the battery core may cause the temperature of the battery core to be too high, resulting in phenomena such as explosion of the battery ...
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Embodiments of the invention relate to the field of new energy batteries, and specifically relate to a battery pack with controllable heating temperature and a battery pack system. The battery pack with controllable heating temperature comprises a battery pack shell, a battery management device, a power cut-off device, multiple battery modules, and multiple heating elements, wherein each heating element wraps a flame retardant thermal insulation substance, each heating element is arranged between every two battery modules, and the flame retardant thermal insulation substance wrapped in the heating element are attached to two corresponding battery modules; the heating elements, the battery modules, the battery management device and the power cut-off device are arranged in a cavity of the battery pack shell, the battery management device is electrically connected with each battery module and each heating element, and the power cut-off device is electrically connected with each battery module; and the power cut-off device and each heating element are electrically connected with a high voltage interface arranged in the battery pack shell. When the battery pack is charged, the temperature of the battery cell can be maintained in a normal range. The battery pack has better charging performance.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of new energy batteries, in particular, to a battery pack and a battery pack system with controllable heating temperature. Background technique [0002] The power battery pack is the core component of new energy electric vehicles, and its charge and discharge quality directly affects the safe and reliable operation of new energy electric vehicles. Most existing battery packs have poor charge quality. Contents of the invention [0003] In view of this, the present invention provides a battery pack and a battery pack system with controllable heating temperature, which can improve the existing problem of poor charging quality of the battery pack. [0004] To achieve the above purpose, an embodiment of the present invention provides a battery pack with controllable heating temperature, including: a battery pack case, a battery management device, a power cut-off device, multiple batte...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01M2/10H01M10/615H01M10/625H01M10/6571H01M10/635H01M50/20
CPCH01M10/615H01M10/625H01M10/635H01M10/6571H01M50/20Y02E60/10
Inventor 汪秀山袁承超劳力马俊峰王扬周鹏
Owner HUATING HEFEI POWER TECH