Battery structure, battery module and electric vehicle
A technology for batteries and power battery packs, which is applied to battery pack parts, structural parts, secondary batteries, etc. It can solve the problems of waste of battery cell space, high current density, safety issues, etc., to improve heat dissipation and simplify connection design , The effect of convenient cell combination
Pending Publication Date: 2022-07-29
NIO TECH ANHUI CO LTD
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Problems solved by technology
Due to the small area of the pole, when the battery is charging and discharging, the current density at the pole is high, which may easily cause local overheating and cause safety problems, and more battery packs are in series structure (some large-capacity batteries even have no Parallel connection), when the batteries are connected in series, they need to be connected by busbar welding, the process is complicated, and the extra cell space is wasted
Method used
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[0023] In order to help those skilled in the art to understand exactly the subject matter claimed in the present application, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0024] Figure 1-3 The battery structure involved in the present application is shown, wherein figure 1 A partially exploded view showing the battery structure involved in the present application; figure 2 Shows a partially exploded view of the battery structure involved in the present application seen from other perspectives; image 3 A combined diagram of a plurality of cell structures involved in the present application is shown.
[0025] The battery structure involved in the present application is used for a power battery pack in an electric vehicle. The power battery pack may include multiple battery modules, and each battery module may include multiple battery structures. like figure 1 As shown, the battery structu...
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The invention discloses a battery structure, a battery module and an electric vehicle. The battery structure comprises a battery body, the battery body comprises a battery cell unit used for power storage, a positive electrode material and a negative electrode material are arranged in the battery cell unit, a positive electrode of the battery cell unit is connected with a first surface of the plurality of surfaces, and a negative electrode of the battery cell unit is connected with a second surface of the plurality of surfaces. The battery body is provided with a first positive electrode surface and a second negative electrode surface; wherein the first positive face and the second negative face are opposite, and at least one of the first positive face and the second negative face has a conductive face configured to receive and juxtapose another battery structure. The battery structure has the advantages of good heat dissipation, simple structure and the like.
Description
technical field [0001] The present application relates to the field of storage batteries, in particular to a battery structure of a storage battery. [0002] The present application also relates to a battery module including the above-mentioned battery structure and an electric vehicle including the above-mentioned battery structure. Background technique [0003] Lithium-ion batteries are one of the ideal power sources for electric vehicles. With the rapid development of the new energy vehicle market, its material system, structural design and process technology are also rapidly being updated and upgraded. In order to meet the power output of electric vehicles, the battery system needs to combine dozens or hundreds of single cells in series and parallel to obtain the required high voltage and high power. The single cells are connected in series and parallel through external connectors, which not only reduces the energy density of the battery system, but also reduces the pow...
Claims
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Login to View More IPC IPC(8): H01M50/548H01M50/545H01M10/613H01M10/617H01M10/625H01M10/6554H01M50/249H01M50/503H01M50/51H01M10/0525
CPCH01M50/548H01M50/545H01M50/249H01M10/613H01M10/625H01M10/6554H01M50/503H01M50/51H01M10/617H01M10/0525
Inventor 曾士哲
Owner NIO TECH ANHUI CO LTD