Phones also run several kinds of batteries, ranging from lithium ion to lithium polymer to Nickel Metal Hydride (NiMH).

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Johnson Controls is positioning itself to be a technology leader in hybrid car batteries as the industry shifts to lithium ion batteries from nickel metal hydride batteries used in today's hybrids.

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To be technical they have moved from nickel cadmium (NiCad), through nickel-metal hydride (NiMH) to lithium-ion (Li-ion).

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With all the electronic devices in our lives these days, it makes environmental (and financial) sense to switch to rechargeable nickel metal hydride (NiMH) and lithium ion (Li-Ion) batteries.

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The battery cells were fabricated by adapting a process developed by another team at the university which is designed to make it faster to recharge the batteries than lithium ion (Li-on) and nickel metal hydride (NiMH) equivalents.

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Lithium-ion batteries are lighter, more efficient and more powerful than nickel-metal hydride batteries used in first-generation hybrids.

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Lithium-ion batteries are lighter, more efficient and more powerful than nickel-metal-hydride batteries used in first-generation hybrids.

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Ford already knew that lithium ion batteries were 50 percent lighter and 25 to 30 percent smaller than nickel-metal-hydride batteries, packing more energy pound-for-pound.

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Nickel-metal-hydride batteries use neodymium, cerium, lanthanum and praseodymium, none of which are used in more efficient lithium-ion batteries.

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