Title:
PACKAGING ADHESIVE FILM AND PHOTOVOLTAIC ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2024/055403
Kind Code:
A1
Abstract:
The present application belongs to the technical field of photovoltaics. Disclosed in the present application is a packaging adhesive film. The packaging adhesive film comprises a cell layer, wherein the cell rate of the cell layer is S1. A lamination treatment is performed on the packaging adhesive film for 10-20 min at a temperature of 120-160ºC and a pressure of 101 kPa. After lamination, the cell rate is S2, and the ratio S2/S1 of the cell rate S2 after lamination to the cell rate S1 before lamination is 0.1%-90%. Further disclosed in the present application is a photovoltaic assembly. The photovoltaic assembly comprises a front-layer substrate, a first packaging adhesive film layer, a battery string, a second packaging adhesive film layer and a rear-layer substrate, wherein at least one of the first packaging adhesive film layer and the second packaging adhesive film layer is selected from the packaging adhesive film. In the present application, by means of controlling the cell rate, the cell size, the cell retention rate and the cell size retention rate of a packaging adhesive film, when the hardness of the packaging adhesive film and the hidden-crack rate of a battery piece are reduced, the mechanical properties and pass rate of the packaging adhesive film are ensured, and the mechanical properties and packaging pass rate of the whole photovoltaic assembly, which has been subjected to a lamination treatment, are also ensured.
Inventors:
ZHENG JIONGZHOU (CN)
WEI MENGJUAN (CN)
HOU HONGBING (CN)
WEI MENGJUAN (CN)
HOU HONGBING (CN)
Application Number:
PCT/CN2022/130783
Publication Date:
March 21, 2024
Filing Date:
November 09, 2022
Export Citation:
Assignee:
HANGZHOU FIRST APPLIED MAT CO LTD (CN)
International Classes:
C09J7/00; C08J9/06; C08J9/12; C08L23/06; C08L23/08; C08L23/12; C08L23/16; C09J7/30; C09J11/04; C09J11/08; C09J123/06; C09J123/08; C09J123/12; C09J123/16; H01L31/048
Foreign References:
| CN115181501A | 2022-10-14 | |||
| CN114716923A | 2022-07-08 | |||
| CN112778565A | 2021-05-11 | |||
| CN107400471A | 2017-11-28 | |||
| CN114231202A | 2022-03-25 | |||
| CN114561166A | 2022-05-31 | |||
| CN114566559A | 2022-05-31 | |||
| CN114621702A | 2022-06-14 | |||
| EP0084220A1 | 1983-07-27 | |||
| GB1315488A | 1973-05-02 | |||
| JP2012020585A | 2012-02-02 |
Attorney, Agent or Firm:
CVC INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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