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Frontiers of Engineering Reports on Leading-Edge Engineering from the 2014 Symposium (2015) / Chapter Skim
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Challenges in Batteries for Electric Vehicles--Sarah Stewart, Jake Christensen, Nalin Chatururvedi, and Aleksandar Kojic
Pages 37-44

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 37...
... Recent improvements in the cost and energy density of lithium ion batteries have provided electric vehicles with a range of more than 265 miles (DOE 2014) , but high initial costs limit mass market acceptance.
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From page 38...
... If the battery industry can hit the DOE cost target before 2020, then a significant portion of the new vehicle market could become electric. If one assumes that most electric vehicles use 100 kWh battery packs (which should support about 400 miles of driving range -- a typical distance between refueling for a vehicle powered by an internal-combustion engine)
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From page 39...
... negative electrode results in a higher cell voltage and reduces mass significantly, enabling a higher cell-level energy density, but lithium metal has three primary challenges: low electrochemical potential, morphology changes, and dendrite formation. The low potential causes electrolyte decomposition; hence, it is difficult to find a good electrolyte to use.
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From page 40...
... 1168 2.96 3458 2310 7989 Specific energy, density, and volumetric energy density are provided for positive electrode combinations with lithium metal. HE-NCM=high-energy nickel cobalt manganese; NCA=nickel cobalt aluminum.
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From page 41...
... As power plants become modernized with more renewable sources of energy, EV-associated emissions will decrease further. USE OF MODELS TO REDUCE COSTS Big challenges must be overcome to enable battery technologies such as lithium sulfur and lithium air, but in the meantime improvements can be made in how current technologies are utilized.
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From page 42...
... 2014. Recent advances in the Si-based nanocomposite materials as high capacity anode materials for lithium ion batteries.
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From page 43...
... National Petroleum Council Future Transportation Fuels Study. Available at www.npc.org/FTF_Topic_papers/17 Advanced_Batteries.pdf.
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Key Terms

  • lithium ion
  • energy density
  • ion batteries
  • ion battery
  • specific energy

  • internal combustion
  • battery energy
  • lithium ions
  • lithium metal
  • energy storage

  • electrified vehicles
  • lithium air
  • lithium anode
  • volumetric energy
  • positive electrode

  • volume changes
  • electrode materials
  • nickel cobalt
  • cell level
  • vehicle market

  • solid electrolytes
  • liquid electrolytes
  • current challenges
  • anode materials
  • metal oxide

  • typical lithium
  • lithium electrodes
  • lithium sulfur
  • worldwide lithium
  • moving lithium


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