We have examined the case of light atom (B, N) doped and co-doped graphitic films grown on copper for the anode-free Li Metal Battery (AFLMB) application. For nitrogen doping, the depositions were carried out by laser ablating pure graphite (Gr) in the presence of Nitrogen (N2) or Ammonia (NH3). In another interesting case, 5 wt. % Boron nitride (BN) was added into the graphite target itself to obtain BN-doped graphite films. It was found that the growth condition mediated film constitution and properties significantly influence the Coulombic efficiency and cycling stability of the cells when tested for AFLMB. The cycle life demonstrated by the cells of pure graphitic film (Gr) was only about 110 cycles, while the N-doped graphite films obtained using N2 gas (N2–Gr) exhibited stability up to about 300 cycles. Interestingly the N-doped films obtained using NH3 gas (NH3–Gr) exhibited a stability of 715 cycles and B, N co-doped graphite (BN–Gr) film resulted in an even longer cycle life of 795 cycles. Density functional theory calculations were also performed to deeply understand the interaction and binding energy of Lithium within the undoped and doped graphene sheets modeled through the addition of light elements. It was found that the binding of Li is stronger in the (B, N) co-doped graphene as compared to the N-doped graphene and undoped graphene but much weaker than the B-doped graphene. Therefore, an improved lateral Li diffusion in the (B, N) co-doped graphene is observed where the Li binding strength is optimum resulting in better cycling stability.
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September 2024
Research Article|
September 05 2024
Light element (B, N) co-doped graphitic films on copper as highly robust current collectors for anode-free Li metal battery applications
Rhushikesh Godbole
;
Rhushikesh Godbole
(Formal analysis, Investigation, Methodology, Validation, Writing – original draft)
1
Department of Physics, Indian Institute of Science Education and Research
, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
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Shweta Hiwase
;
Shweta Hiwase
(Formal analysis, Investigation, Methodology, Validation, Writing – original draft)
1
Department of Physics, Indian Institute of Science Education and Research
, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
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Mujaffar Hossain
;
Mujaffar Hossain
(Formal analysis, Methodology, Software)
2
Research Institute for Sustainable Energy (RISE), TCG-CREST
, Sector V, Salt Lake, Kolkata 700091, India
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Supriya Kadam
;
Supriya Kadam
(Formal analysis, Investigation)
1
Department of Physics, Indian Institute of Science Education and Research
, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
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Minal Wable
;
Minal Wable
(Formal analysis, Investigation)
1
Department of Physics, Indian Institute of Science Education and Research
, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
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Sunit Rane
;
Sunit Rane
(Resources)
3
Centre for Materials for Electronics Technology (CMET)
, Panchawati, Off Pashan Road, Pune 411008, India
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Sukanta Mondal
;
Sukanta Mondal
(Resources)
2
Research Institute for Sustainable Energy (RISE), TCG-CREST
, Sector V, Salt Lake, Kolkata 700091, India
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Bidisa Das
;
Bidisa Das
a)
(Formal analysis, Funding acquisition, Investigation, Methodology, Software, Writing – review & editing)
2
Research Institute for Sustainable Energy (RISE), TCG-CREST
, Sector V, Salt Lake, Kolkata 700091, India
a)Authors to whom correspondence should be addressed: bidisa.das@tcgcrest.org; abhik.banerjee@tcgcrest.org; and satish.ogale@tcgcrest.org
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Abhik Banerjee;
Abhik Banerjee
a)
(Writing – review & editing)
2
Research Institute for Sustainable Energy (RISE), TCG-CREST
, Sector V, Salt Lake, Kolkata 700091, India
a)Authors to whom correspondence should be addressed: bidisa.das@tcgcrest.org; abhik.banerjee@tcgcrest.org; and satish.ogale@tcgcrest.org
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Satishchandra Ogale
Satishchandra Ogale
a)
(Conceptualization, Funding acquisition, Project administration, Supervision, Validation, Writing – review & editing)
1
Department of Physics, Indian Institute of Science Education and Research
, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
2
Research Institute for Sustainable Energy (RISE), TCG-CREST
, Sector V, Salt Lake, Kolkata 700091, India
a)Authors to whom correspondence should be addressed: bidisa.das@tcgcrest.org; abhik.banerjee@tcgcrest.org; and satish.ogale@tcgcrest.org
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a)Authors to whom correspondence should be addressed: bidisa.das@tcgcrest.org; abhik.banerjee@tcgcrest.org; and satish.ogale@tcgcrest.org
Appl. Phys. Rev. 11, 031416 (2024)
Article history
Received:
March 17 2024
Accepted:
July 31 2024
Citation
Rhushikesh Godbole, Shweta Hiwase, Mujaffar Hossain, Supriya Kadam, Minal Wable, Sunit Rane, Sukanta Mondal, Bidisa Das, Abhik Banerjee, Satishchandra Ogale; Light element (B, N) co-doped graphitic films on copper as highly robust current collectors for anode-free Li metal battery applications. Appl. Phys. Rev. 1 September 2024; 11 (3): 031416. https://doi.org/10.1063/5.0208785
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