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@ARTICLE{Wu:1024361,
      author       = {Wu, Yi−Shiuan and Pham, Quoc-Thai and Yang, Chun-Chen and
                      Chern, Chorng-Shyan and Babulal, Lakshmipriya Musuvadhi and
                      Seenivasan, Manojkumar and Jeyakumar, Juliya and Mengesha,
                      Tadesu Hailu and Placke, Tobias and Brunklaus, Gunther and
                      Winter, Martin and Hwang, Bing Joe},
      title        = {{C}oating of a {N}ovel {L}ithium-{C}ontaining {H}ybrid
                      {O}ligomer {A}dditive on {N}ickel-{R}ich {L}i{N}i 0.8 {C}o
                      0.1 {M}n 0.1 {O} 2 {C}athode {M}aterials for
                      {H}igh-{S}tability and {H}igh-{S}afety {L}ithium-{I}on
                      {B}atteries},
      journal      = {ACS sustainable chemistry $\&$ engineering},
      volume       = {10},
      number       = {22},
      issn         = {2168-0485},
      address      = {Washington, DC},
      publisher    = {ACS Publ.},
      reportid     = {FZJ-2024-02117},
      pages        = {7394 - 7408},
      year         = {2022},
      note         = {Zudem unterstützt durch BMBF Projekt: 03XP0304D},
      abstract     = {In this study, we synthesized a Li-containing “BTJ-L”
                      hybrid oligomer─obtained through polymerization of
                      bismaleimide (BMI) with a polyether monoamine (i.e.,
                      Jeffamine-M1000, JA), trithiocyanuric acid (TCA), and
                      LiOH─and coated it as an additive in various amounts
                      (0.5–2 wt $\%)$ onto the surface of a Ni-rich
                      LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode active material,
                      forming BTJ-L@NCM811 electrodes for lithium-ion batteries
                      (LIBs). Relative to CR2032 coin-type cells incorporating a
                      pristine NCM811 electrode, the cells with the 1 wt $\%$
                      BTJ-L@NCM811 electrode demonstrated a slightly higher
                      initial discharge capacity (173 mAh g–1 vs171 mAh g–1)
                      and higher values of average Coulombic efficiency, CEavg
                      $(99.5\%$ $vs98.9\%)$ and capacity retention, CR $(86.1\%$
                      $vs72.9\%)$ after 100 cycles at 1C. Electrochemical
                      impedance spectroscopy revealed that the decrease in the
                      charge transfer resistance (Rct: 46.7 Ω vs171.1 Ω) and the
                      superior Li+ ion diffusivity (DLi+: ∼1.09 × 10–12 cm2
                      s–1 vs ∼1.61 × 10–13 cm2 s–1) of the cells
                      incorporating the BTJ-L@NCM811 electrode after cycling at 1C
                      could be attributed to the excellent wettability toward the
                      electrolyte and the extra Li+ ions contributed by the hybrid
                      BTJ-L oligomer additive. Therefore, the BTJ-L oligomer
                      coating layer functioned much like an artificial cathode
                      electrolyte interphase (CEI) layer, impairing the
                      dissolution of transition metals (TMs) from the cathode
                      materials into the carbonate-based electrolytes.
                      Furthermore, insitu microcalorimetry manifested that the
                      total exothermic heat generation (Qt) of the coin cells
                      containing the 1 wt $\%$ BTJ-L@NCM811 electrode operating at
                      1C in isothermal modes (35 and 55 °C) during the charging
                      process was dramatically lower (by ca. $45\%)$ relative to
                      that of the cells incorporating the pristine NCM811
                      electrode. On the basis of an ARC-HWS analysis, the
                      delithiated pristine NCM811 electrode shows thermal
                      reactivity with the electrolyte at a much earlier stage in
                      comparison to the 1 wt $\%$ BTJ-L@NCM811 counterpart (843
                      min vs 1039 min) between 171 and 192 °C. Thus, Ni-rich
                      NCM811 cathode materials coated with trace amounts (i.e., 1
                      wt $\%)$ of the BTJ211-L1 hybrid oligomer additives
                      displayed both enhanced electrochemical performance and
                      remarkably improved thermal stability. Accordingly, this
                      Li-containing BTJ-L hybrid oligomer appears to be a great
                      candidate material for coating high-Ni oxide cathode
                      materials to enhance the safety and electrochemical
                      performance of LIB cells.},
      cin          = {IEK-12},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-12-20141217},
      pnm          = {1223 - Batteries in Application (POF4-122) / 1222 -
                      Components and Cells (POF4-122) / LiBEST2 -
                      Lithium-Batterie-Konzepte mit hoher Energiedichte, Leistung
                      und Sicherheit (13XP0304A)},
      pid          = {G:(DE-HGF)POF4-1223 / G:(DE-HGF)POF4-1222 /
                      G:(BMBF)13XP0304A},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000809046600018},
      doi          = {10.1021/acssuschemeng.2c01712},
      url          = {https://juser.fz-juelich.de/record/1024361},
}