Solar cell and photovoltaic module

US12317642B2 · kind B2 · utility

Assignees

• ZHEJIANG JINKO SOLAR CO., LTD. · CN
• JINKO SOLAR CO., LTD. · CN

Inventors

• Zhao Wang · Hubei, CN
• Jie Yang · Foster City, US
• Peiting ZHENG · 余新镇, CN
• Ke PA · Zhejiang, CN
• Jinjin CHEN · Beijing, CN
• Lingxin FANG · Zhejiang, CN

Key dates

• Filing date: Mar 9, 2023
• Grant date: May 27, 2025
• Expiry date: Mar 9, 2043

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10F77/311

Abstract

Disclosed are a solar cell and a photovoltaic module. The solar cell includes a substrate, having a first surface, having a metal pattern region and a non-metal pattern region, a first passivation contact structure, located in the metal pattern region and including a first tunneling layer and a first doped conductive layer stacked in a direction away from the substrate, and a second passivation contact structure, including a second tunneling layer and a second doped conductive layer stacked in the direction away from the substrate, and having a first portion over the non-metal pattern region and a second portion over the first passivation contact structure, and a top surface of the first portion of the second passivation contact structure is not further away from the substrate than a top surface of the second portion of the second passivation contact structure.