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High Volumetric Capacity Lithium Primary Battery via CuO and FeS 2 All-Active-Material Cathodes.

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Title: High Volumetric Capacity Lithium Primary Battery via CuO and FeS 2 All-Active-Material Cathodes.
Authors: Cai, Chen1 (AUTHOR), Min, Byeongcheol1 (AUTHOR), Koenig Jr., Gary M.1 (AUTHOR) gmk3k@virginia.edu
Source: Energies (19961073). Feb2026, Vol. 19 Issue 3, p615. 12p.
Subject Terms: *Copper oxide, *Lithium cell electrodes, *Energy density, *Electrodes, *Storage batteries
Abstract: Low-voltage primary batteries broadly power small electronics used in health, biomedical, and wearable applications. These devices are generally more sensitive to volumetric capacity than gravimetric capacity. The current state-of-the-art button battery is Zn-Ag2O, where contributors that limit volumetric capacity include the incorporation of inactive materials in the electrode microstructure such as gelling agents, binders, and conductive additives. Herein, cathode materials of CuO and FeS2 will be described for small form factor coin/button cells. When paired with Li metal anodes, the operating voltage is similar to Zn-Ag2O. The key innovation is that they will be processed into all-active-material (AAM) electrode architectures, where the electrodes will comprise only electroactive materials and pores that are filled with electrolyte during cell fabrication. The AAM architecture significantly enhanced electroactive material volume utilization, and thus volumetric capacity. FeS2 and CuO were processed into AAM electrodes under various processing conditions, and Li-FeS2 and Li-CuO primary batteries were fabricated and evaluated. At the cell level, volumetric capacity of 1300 mAh cm−3 was achieved, and in a button cell form factor 395/927, nearly 100 mAh was delivered, which compares favorably with commercially available options, which typically range from 27 to 55 mAh. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 191587094
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: High Volumetric Capacity Lithium Primary Battery via CuO and FeS 2 All-Active-Material Cathodes.
– Name: Author
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  Data: <searchLink fieldCode="AR" term="%22Cai%2C+Chen%22">Cai, Chen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Min%2C+Byeongcheol%22">Min, Byeongcheol</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Koenig+Jr%2E%2C+Gary+M%2E%22">Koenig Jr., Gary M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> gmk3k@virginia.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Feb2026, Vol. 19 Issue 3, p615. 12p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Copper+oxide%22">Copper oxide</searchLink><br />*<searchLink fieldCode="DE" term="%22Lithium+cell+electrodes%22">Lithium cell electrodes</searchLink><br />*<searchLink fieldCode="DE" term="%22Energy+density%22">Energy density</searchLink><br />*<searchLink fieldCode="DE" term="%22Electrodes%22">Electrodes</searchLink><br />*<searchLink fieldCode="DE" term="%22Storage+batteries%22">Storage batteries</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Low-voltage primary batteries broadly power small electronics used in health, biomedical, and wearable applications. These devices are generally more sensitive to volumetric capacity than gravimetric capacity. The current state-of-the-art button battery is Zn-Ag2O, where contributors that limit volumetric capacity include the incorporation of inactive materials in the electrode microstructure such as gelling agents, binders, and conductive additives. Herein, cathode materials of CuO and FeS2 will be described for small form factor coin/button cells. When paired with Li metal anodes, the operating voltage is similar to Zn-Ag2O. The key innovation is that they will be processed into all-active-material (AAM) electrode architectures, where the electrodes will comprise only electroactive materials and pores that are filled with electrolyte during cell fabrication. The AAM architecture significantly enhanced electroactive material volume utilization, and thus volumetric capacity. FeS2 and CuO were processed into AAM electrodes under various processing conditions, and Li-FeS2 and Li-CuO primary batteries were fabricated and evaluated. At the cell level, volumetric capacity of 1300 mAh cm−3 was achieved, and in a button cell form factor 395/927, nearly 100 mAh was delivered, which compares favorably with commercially available options, which typically range from 27 to 55 mAh. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.3390/en19030615
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 12
        StartPage: 615
    Subjects:
      – SubjectFull: Copper oxide
        Type: general
      – SubjectFull: Lithium cell electrodes
        Type: general
      – SubjectFull: Energy density
        Type: general
      – SubjectFull: Electrodes
        Type: general
      – SubjectFull: Storage batteries
        Type: general
    Titles:
      – TitleFull: High Volumetric Capacity Lithium Primary Battery via CuO and FeS 2 All-Active-Material Cathodes.
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            NameFull: Cai, Chen
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            NameFull: Min, Byeongcheol
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            – D: 01
              M: 02
              Text: Feb2026
              Type: published
              Y: 2026
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              Value: 19
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            – TitleFull: Energies (19961073)
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