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@ARTICLE{Duan:872667,
      author       = {Duan, Shanghong and Laptev, Alexander M. and Mücke, Robert
                      and Danilov, Dmitri L. and Notten, Peter H. L. and Guillon,
                      Olivier},
      title        = {{T}opological optimization of patterned silicon anode by
                      finite element analysis},
      journal      = {Mechanics research communications},
      volume       = {97},
      issn         = {0093-6413},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2020-00158},
      pages        = {63 - 69},
      year         = {2019},
      abstract     = {A silicon-based anode in lithium-ion battery exhibits
                      several times higher gravimetric energy storage capacity
                      compared to an established carbon-based anode. However, the
                      cycling performance of the silicon anode is poor due to the
                      extremely large volume variation during the intercalation of
                      lithium ions. The micro-structuring of silicon facilitates
                      cycling performance. In particular, patterned
                      microstructures are discussed as a possible solution. The
                      large volumetric change can be adopted in such structures by
                      bending walls and rotation around fixed vertexes.
                      Nevertheless, the cycling performance of known patterned
                      anodes remains poor due to plastic deformations. In this
                      paper, a new square-based-patterned silicon anode is
                      proposed and analyzed using the finite element method. The
                      maximal stress in the topologically optimized structure is
                      below the yield strength of lithiated silicon. In contrast
                      to known structures, the deformed pattern of the new
                      structure is explicitly defined by its initial geometry. A
                      similar modification of the honeycomb-based-patterned anode
                      leads to a slightly larger bending stress, but still below
                      the yield stress of lithiated silicon. The related pure
                      elastic deformation behavior is favorable to a prolonged
                      cycling life of the micro-structured silicon anode. The
                      developed approach can be applied for analysis of other
                      severely swelling metamaterials.},
      cin          = {IEK-1},
      ddc          = {670},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000475994600011},
      doi          = {10.1016/j.mechrescom.2019.04.013},
      url          = {https://juser.fz-juelich.de/record/872667},
}