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Battery

A battery and positive electrode technology, applied in the battery field, can solve problems such as consumption, battery damage, and excessive use of welding materials, and achieve the effects of simple manufacturing process, large light-receiving area and high yield rate

Active Publication Date: 2021-02-23
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The light-facing and back-light surfaces of existing solar cells each have 2-3 busbars as the positive and negative poles of the battery. These busbars not only consume a large amount of silver paste, but also, because the busbars block the incident light, the battery is not efficient
At the same time, since the positive and negative electrodes of the battery are respectively distributed on the upper surface (that is, the light-facing surface) and the lower surface (that is, the back-light surface) of the battery, when multiple batteries are connected in series, it is necessary to use welding tape to connect the electrodes on the light-facing surface of the battery to the adjacent ones. The electrodes on the backlight side of the battery are welded together. The welding process is cumbersome, and more welding materials are used. The battery is likely to be damaged during the welding process and the subsequent lamination process.

Method used

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Embodiment Construction

[0035] 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 only for explaining the present invention and should not be construed as limiting the present invention.

[0036] The battery 10 according to the embodiment of the present invention will be described below with reference to the accompanying drawings. The battery 10 has the advantages of large effective light-receiving area, simple manufacturing process, low cost, and high yield.

[0037] Such as Figure 1-Figure 9 As shown, the battery 10 according to the embodiment of the present invention includes a base 100 , a diffusion sheet 200 and electrodes.

[0038] Specifically, the substrate 100 has a first power generation base surface and a seco...

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Abstract

The invention discloses a battery, comprising: a base body, the base body has a first power generation basic surface and a second power generation basic surface oppositely arranged, wherein, in the first power generation basic surface and the second power generation basic surface , only the second power generation base is provided with a positive electrode and a negative electrode; a positive diffusion sheet, the positive diffusion sheet is arranged between the positive electrode and the second power generation base; a negative diffusion sheet, The negative electrode diffusion sheet is arranged between the negative electrode and the second power generation base. According to the battery of the invention, the effective light-receiving area is large, the manufacturing process is simple, the cost is low, and the yield is high.

Description

technical field [0001] The present invention relates to the technical field of batteries, in particular to a battery. Background technique [0002] The light-facing and back-light surfaces of existing solar cells each have 2-3 busbars as the positive and negative poles of the battery. These busbars not only consume a large amount of silver paste, but also, because the busbars block the incident light, the battery is not efficient. At the same time, since the positive and negative electrodes of the battery are respectively distributed on the upper surface (that is, the light-facing surface) and the lower surface (that is, the back-light surface) of the battery, when multiple batteries are connected in series, it is necessary to use welding tape to connect the electrodes on the light-facing surface of the battery to the adjacent ones. The electrodes on the backlight side of the battery are welded together. The welding process is cumbersome and more welding materials are used....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/0224H01L31/068
CPCH01L31/022433H01L31/022458H01L31/0682Y02E10/547
Inventor 孙翔姜占锋姚云江田野
Owner BYD CO LTD
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