Perovskite Solar cells
from SEKISUI Chemical Company

Takeru BESSHOPerovskite solar cell group
Corporate R&D centerAcknowledgement
Perovskite solar cell R&D is supported by GREEN INNOVATION national project
Collaborators: Government, University and Institute
経済産業省
The Ministry of Economy, Trade, and Industry of Japan (METI)
国⽴研究開発法⼈ 新エネルギー・産業技術総合開発機構
New Energy and Industrial Technology Development Organization(Program No. 200015)

京都大学
Kyoto University

Prof. Hiroshi Segawa, Prof. Jun Terao
⽴命館大学
Ritsumeikan University

Prof. Takashi MinemotoProf. Yoshihiro Hishikawa
Prof. Takayuki Negami

Prof. Hideo Ohkita
産業技術総合研究所
National Institute of Advanced
Industrial Science and Technology

Dr. Takurou Murakami
1Technical Background of Sekisui Chemical Co., LTD.
∎Solar cells filled with SEKISUI original technology・・・Strengths in “durability” and“manufacturing process”∎Started research around 2013, participated in NEDO project and started researchand development in 2015
Barrier film
Sealing resin･Sealing
technology･Process
technology･Materialtechnology･Deposition
technology

SubstrateTCO
Active layer(perovskite)electrodeBack sheet

VacuumdepositionResindesignPrecision
coatingCross section image of perovskite solar cellCompany’s ２８technical Platforms isrelated and utilized2The Progress of Roll to Roll fabrication process
Settlement of roll-to-roll element technology for 300 mm width

Roll Substrate
Power generation
layer formation
RtoR Coating

Confirmed outdoor durability
for equivalent to 10 years

Electrodeformation
RtoR vacuum
film forming
Electrodeformation
RtoR vacuum
film forming

Electrodeprocess
RtoR cutting

Completion〈Roll-to-Roll manufacturing process〉※ Compliant with IEC61215, a solar cell standard
Passed 5 major durability tests

Achieved power conversion
efficiency of 15.0%
Characteristics:
 Flexible Light weight Easy Installable※ 300mm width ＲtoＲ manufacturing
3The Comparison between Si and Perovskite solar cell

4The Power Generation Cost (PGC)
Aim for PGC 20 yen (0.14$) / kWh
PGC is from the installation cost (i.e. equipment cost + construction cost)that is taken into account of power conversion efficiency and durability.
Providing value①
Profitability（PGC）¥14 ($0.095) / W

Rigid Si-PVSEKISUI
Perovskite
PV¥20 ($0.135) / W¥40 ($0.271) / W

Existing
Flexible PV・CIGS・a-Si
Load Capacity
3 kg / m2

Si-PVLight weight
Si-PV We are in the demonstration stagewith several partners.
 We are going to Market Entry
on FY2025
Providing value②
Load Capacity
Load Capacity
Easy Installation
10 kg / m2
20 kg / m2
（Load Capacity）

5

The Film type perovskite solar cell

– Pilot Test -The Light and flexible Perovskite solar cells are suitable to be set at new innovative demand.
Image by Civil
Aviation Bureau

Pics from NEDO

Building wall(tie-up with NTT data)

Image by JR west

Airport & Harbor

Rail way (tie-up with JR west)

Roadway

Lid of Sewerage Bureau(tie-up with Tokyo
metropolitangovernment)
Light roof top(e.g. factory, gymnasium)

Bus shelter

・Accumulated market size of Si solar cells→ about 70GW (in Japan)
・Expected potential market size of Perovskite
solar cells (in Japan)→ 1.5-2 times larger than Si solar cells
・Expected potential market size of Perovskite
solar cells (World)→ more than 10 times of Japan6

The Potential of company
Name

SEKISUI CHEMICAL CO., LTD.

Paid-upCapital¥100,002 million

Net Sales¥ 1,242,521 million ≒ $ 8.5 billion

OrdinaryIncome¥91,666 million ≒ $ 630 million

Number of
Employees

26,838Location ofHeadquarters

Osaka Head Office

Location ofHeadquarters

Tokyo Head Office

Establishment
President
URL(for the term ending March 2023; on a consolidated basis)(for the term ending March 2023; on a consolidated basis)(for the term ending March 2023)

Osaka Head Office

2-4-4 Nishitemma, Kita-ku, Osaka 530-8565 Japan
Tel: +81-6-6365-4110
2-10-4 Toranomon, Minato-ku, Tokyo 105-8566 Japan
Tel: +81-3-6748-6460

March 3, 1947
Keita KATO
http://www.sekisuichemical.com

Tokyo Head Office7

The Business Diversity in Sekisui chemical company
The innovation and collaboration by own technology as cutting edge

44%

8%

€ 8.5
Billion
18%
30%

2022

8

The target of Sekisui R&D Activities

Sustainable Society
fromSustainable
MaterialtoSustainable
Energyby Perovskite Solar Cell Development
9