Skip to main content

Combat Hybrid Power System Component Technologies Technical Challenges and Research Priorities (2002) / Chapter Skim
Currently Skimming:

3 Battery Technologies for Military Hybrid Vehicle Applications
Pages 23-30

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 23...
... This chapter examines the current state-of-the-art of batteries for vehicle propulsion, and promising research areas that could lead to improved performance. ENERGY DENSITY OF CHEMICAL BATTERIES The theoretical specific energy density of selected existing batteries is shown in Table 3-~.
Read the entire page →
From page 24...
... 410 70 5.86 80 5.13 Li-ion high power 85-95 Li-ion high energy ~ 35- ~ 50 USABC Mid-term 80 Goal Long-term 200 Al-based Al-Fe-O 2,278 455 5.0 Al-Cu-O 2, ~ 98 440 5.0 Al-Fe-OH i,903 380 5.0 , SPECIFIC POWER CHARACTERISTICS OF CHEMICAL BATTERIES Specific power is the maximum power per unit battery weight that the battery can deliver in a short period. Theoretically, there is no top limit for specific power.
Read the entire page →
From page 25...
... At the same time, the DoD requires lower power density and higher energy density batteries to satisfy the silent watch requirements and stealth operation capabilities. TABLE 3-3 Status of Battery Systems for Hybrid Vehicles Specific Specific Energy energy power efficiency Cost System (Wh/kg)
Read the entire page →
From page 26...
... The calculated ratios of battery weight to total vehicle weight for typical batteries are listed in Table 3-5. It is clear that SAFT l~i-ion high power and high energy batteries can meet the power demand.
Read the entire page →
From page 27...
... distance miles FIGURE 3-3 Battery weight/total weight ratio versus driving range while climbing hill. Specific energy (W.h/kg)
Read the entire page →
From page 28...
... However, battery power capability has no theoretical top limitation. It heavily clepencis on manufacturing technology to reduce the battery internal resistance, which causes voltage drop on the battery terminals and consequently limits the battery power.
Read the entire page →
From page 29...
... Voltage drop caused by limited chemical reactivity at the interface Voltage drop caused by mass transfer overpotential Ohmic resistance of Minimized materials resistance R&D Priorities Triple the power and energy with nanomaterials technology and new chemistries Increased safety (eliminate flammable materials; better packing for isolation, containment, venting; thermally stable materials; diagnostics/ prognostics integrated in pack; eliminate ground fault and arcing; improved materials that reduce gassing) Advanced electrode/electrolyte materials with high surface reactivity Increased electrode surface area by increased matrix porosity or perhaps application of nanomaterials Electrolytes with high concentrations of reactant species and low ion transfer resistance Low-resistance materials 29
Read the entire page →
From page 30...
... 2001. "Combat Vehicle Mobility Requirements Dec MesserIe, Hugo K
Read the entire page →

Key Terms

  • specific power
  • specific energy
  • vehicle weight
  • energy density
  • battery weight

  • drop caused
  • battery power
  • driving range
  • total vehicle
  • power demand

  • chemical reaction
  • technical challenges
  • hybrid power
  • chemical batteries
  • reaction activity

  • combat hybrid
  • hard acceleration
  • existing batteries
  • reactant species
  • electrode materials

  • energy storage
  • power capability
  • theoretical specific
  • internal resistance
  • versus driving

  • power specific
  • top limitation
  • military vehicles
  • specific powers
  • lead acid


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.