Next on the list on cutting edge technology crammed into
the 1" thick LaVie MX are Lithium Polymer Batteries. The new variant on the
Li-ION batteries are rectangular in shape (~6mm in thickness or less), and allow
for super-thin notebook integration. The technology does have some drawbacks in
that the batteries are supposedly not well suited towards high power consumption
notebooks. They are also more expensive then Li-ION batteries. Li-Polymer
technology can provide 500+ charge/discharge cycles with no memory effect.
"Li-polymer batteries replace the liquid electrolyte with a
polymer in gel or solid form. The polymer electrolyte provides the required
electrode stack pressure, so the metal can is no longer required and it becomes
possible to enclose the cell in a foil pouch. A laminate of aluminum foil and
plastic, the pouch occupies less space and weighs less than the metal can. The
foil pouch permits greater room for active material, and it can be readily
formed in a shape closely tailored to the space available in the application.
Moreover, the foil can reduce the cell weight by 50% or more."
With each of these technologies the NEC LaVie MX has
made significant strides towards cutting-edge, high-tech portable computing. Li-polymer batteries are
so new to the market that expectations
abound towards higher power-densities and lower costs. With more Li-polymer
batteries being produced cost will undoubtedly lower for the end-user.
Whether the reflective LCD dispaly technology will prove itself in terms
of power savings over that of convenience remains to be seen, but then
again 11 hours battery life is simply unprecedented, so long as the sun's out!