4.8 Article

3D Printed Compressible Quasi-Solid-State Nickel-Iron Battery

期刊

ACS NANO
卷 14, 期 8, 页码 9675-9686

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsnano.0c01157

关键词

3D printed; rGO/CNT microlattices; compressible; quasi-solid-state Ni-Fe battery; high energy density

资金

  1. SUTD Digital Manufacturing and Design (DManD) Centre
  2. SUTD-MIT International Design Centre (IDC)
  3. National Natural Science Foundation of China [U1804132]
  4. China Postdoctoral Science Foundation [2019M662509]
  5. Zhengzhou University Youth Talent Start-up Grant [32340010]

向作者/读者索取更多资源

The design of a compressible battery with stable electrochemical performance is extremely important in compression-tolerant and flexible electronics. While this remains challenging with the current battery manufacturing method, the field of 3D printing offers the possibility of producing free-standing 3D-printed electrodes with various structural configurations. Through the simple and scalable strategy, various structural configurations can be produced. Herein, we demonstrate a 3D-printed quasisolid-state Ni-Fe battery (QSS-NFB) that shows excellent compressibility, ultrahigh energy density, and superior long-term cycling durability. Through a rational design and adjustment of chemical components, two electrodes consisting of ultrathin Ni(OH)(2) nanosheet array cathode and holey alpha-Fe2O3 nanorod array anode are achieved with a ultrahigh active material loading over 130 mg cm(-3) and excellent compressibility up to 60%. It is noteworthy that the compressible QSS-NFB demonstrated an excellent cycling stability (similar to 91.3% capacity retentions after 10000 cycles) and ultrahigh energy density (28.1 mWh cm(-3) at a power of 10.6 mW cm(-3)). This work provides a simple method for producing compression-tolerant energy-storage devices, which are expected to have promising applications in next generation stretchable/wearable electronics.

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