A large-size, bipolar-stacked and high-safety solid-state lithium battery with integrated electrolyte and cathode

Wei, Zhenyao1,2; Chen, Shaojie2; Wang, Junye2; Wang, Zhihao2; Zhang, Zhihua2,3; Yao, Xiayin2; Deng, Yonghong1; Xu, Xiaoxiong2

2018-08

10.1016/j.jpowsour.2018.05.044

JOURNAL OF POWER SOURCES   影响因子和分区

0378-7753

1873-2755

A large-size, bipolar-stacked and high-safety solid-state lithium battery with integrated electrolyte and cathode is fabricated conveniently via solvent-free UV-cure. Firstly, a series of new solid polymer electrolytes are synthesized through UV-cure, and exhibit a maximum conductivity of 1.29 x 10(-4) S cm(-1) (60 degrees C), a wide electrochemical window (0-5.1 V) and excellent compatibility with Li. Secondly, solid-state LiFePO4/Li cell with integrated electrolyte and electrode is fabricated and delivers a high capacity of 113.3 mAh g(-1) after the 100th cycle, and the capacity retention is 90.2%. The outstanding cell performance is ascribed to the integrated electrolyte/cathode design which is beneficial for the interfacial impedance decreasing. Finally, a 5 cm x 8 cm size battery with integrated electrolyte/cathode is assembled conveniently, and it presents the 80.55% retention of discharge capacity at the 200th cycle and high-safety. It can be well work under the conditions of bending, cutting, on the fire and even after nail penetration. Remarkably, the bipolar-stacked battery is also fabricated, and the open circuit voltage is as high as 6.33 V. Consequently, this work develops a series of new solid polymer electrolytes and proposes an advanced cell construction design for solid-state lithium batteries which is very suitable for the large-scale preparation.

New polymer electrolyte UV-Cure Integrated cathode and electrolyte Large-size Bipolar-stack High safety

SCI ; EI

英语

第一 ; 通讯

Natural Science Foundation of Guangdong Province[2016A030311031]

Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000436914100007

ELSEVIER SCIENCE BV

20182105236195

Bipolar integrated circuits ; C (programming language) ; Cathodes ; Curing ; Electric batteries ; Electric discharges ; Lithium batteries ; Lithium compounds ; Open circuit voltage ; Polyelectrolytes

Electricity: Basic Concepts and Phenomena:701.1 ; Electric Batteries:702.1 ; Primary Batteries:702.1.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Computer Programming Languages:723.1.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Organic Polymers:815.1.1

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Shenzhen 518055, Peoples R China
2.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Wei, Zhenyao,Chen, Shaojie,Wang, Junye,et al. A large-size, bipolar-stacked and high-safety solid-state lithium battery with integrated electrolyte and cathode[J]. JOURNAL OF POWER SOURCES,2018,394:57-66.

Wei, Zhenyao.,Chen, Shaojie.,Wang, Junye.,Wang, Zhihao.,Zhang, Zhihua.,...&Xu, Xiaoxiong.(2018).A large-size, bipolar-stacked and high-safety solid-state lithium battery with integrated electrolyte and cathode.JOURNAL OF POWER SOURCES,394,57-66.

Wei, Zhenyao,et al."A large-size, bipolar-stacked and high-safety solid-state lithium battery with integrated electrolyte and cathode".JOURNAL OF POWER SOURCES 394(2018):57-66.