Lithium-ion battery
hideLithium-ion batteries (sometimes abbreviated Li-ion batteries) are a type of rechargeable battery in which lithium ions move from the anode to cathode during discharge, and from the cathode to the anode when charged.
Lithium ion batteries are common in consumer electronics. They are one of the most popular types of battery for portable electronics, with one of the best energy-to-weight ratios, no memory effect, and a slow loss of charge when not in use. In addition to uses for consumer electronics, lithium-ion batteries are growing in popularity for defense, automotive, and aerospace applications due to their high energy density. However, certain kinds of mistreatment may cause conventional Li-ion batteries to explode.
The three primary functional components of a lithium ion battery are the anode, cathode, and electrolyte, for which a variety of materials may be used. Commercially, the most popular material for the anode is graphite. The cathode is generally one of three materials: a layered oxide, such as lithium cobalt oxide, one based on a polyanion, such as lithium iron phosphate, or a spinel, such as lithium manganese oxide, although materials such as TiS2 (titanium disulfide) were originally used. Depending on the choice of material for the anode, cathode, and electrolyte the voltage, capacity, life, and safety of a lithium ion battery can change dramatically. Recently novel architectures have been employed to improve the performance of these batteries. Lithium ion batteries are not to be confused with lithium batteries, the key difference being that lithium batteries are primary batteries containing metallic lithium while lithium-ion batteries are secondary batteries containing an intercalation anode material.
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News tagged with lithium ion
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(PhysOrg.com) -- A new breed of rechargeable zinc-air batteries is soon to be available, and may replace lithium-ion batteries in cell phones, laptops and other consumer items. Lithium-ion batteries store ...
Electric cars need government support: Nissan-Renault CEO
Nov 12, 2009 |
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Electric cars could help China and other countries reduce their dependency on oil but the government must provide incentive to make the shift, Nissan and Renault CEO Carlos Ghosn said Thursday.
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Oct 21, 2009 |
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(PhysOrg.com) -- A fleet of 17 buses near Shanghai has been running on ultracapacitors for the past three years, and today that technology is coming to the Washington, DC, for a one-day demonstration. Chinese ...
'Core-Shell' Silicon Nanowires May Improve Lithium-Ion Batteries
Jan 20, 2009 |
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(PhysOrg.com) -- Researchers have found a way to incorporate silicon into the structure of rechargeable lithium-ion batteries, which are used to power a wide variety of portable electronic devices, including ...
Springs built from nanotubes could provide big power storage potential
Nanotechnology / Nanomaterials
Sep 21, 2009 |
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(PhysOrg.com) -- New research by MIT scientists suggests that carbon nanotubes -- tube-shaped molecules of pure carbon -- could be formed into tiny springs capable of storing as much energy, pound for pound, ...
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It looks a bit like a plastic figure of eight, and its Japanese designers say it could revolutionise the way we get around, in total comfort and without breaking a sweat.
The Audi e-tron concept electric car
Oct 02, 2009 |
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(PhysOrg.com) -- Audi has unveiled its new electric car concept, the Audi e-tron at the 2009 Frankfurt Motor Show in Germany.
Increasing Electric Car Battery Performance
Nanotechnology / Nanomaterials
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(PhysOrg.com) -- Researchers have found that by replacing conventional graphite electrodes with silicon nanotube electrodes, lithium-ion batteries can store 10 times more charge.
Introducing the Brabus High Voltage Car
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(PhysOrg.com) -- The Ultimate High Voltage Concept electric car has been unveiled by Brabus at the Frankfurt Motor show in Germany. The sporty little car is a new model incorporating the Brabus Smart ED (Electric ...
Hybrid automaker Fisker to buy shuttered GM plant
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Budding US hybrid car maker Fisker Automotive will reopen a shuttered General Motors plant in Delaware to build fuel-efficient, plug-in cars, the White House announced Tuesday.
Big Blue dreams of a big green battery
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Spike Narayan watched a Tesla electric sports car rocket from zero to 60 mph (100 kph) in less than four seconds and knew batteries would be the next big thing.
Major breakthrough in lithium battery technology reported
Nanotechnology / Nanomaterials
May 18, 2009 |
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An NSERC-funded lab at the University Of Waterloo has laid the groundwork for a lithium battery that can store and deliver more than three times the power of conventional lithium ion batteries.
Tesla unveils groundbreaking electric car
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US automaker Tesla Motors unveiled Thursday its state-of-the-art five-seat sedan, billed as the world's first mass-produced, highway-capable electric car.
New battery material could lead to rapid recharging of many devices
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(PhysOrg.com) -- MIT engineers have created a kind of beltway that allows for the rapid transit of electrical energy through a well-known battery material, an advance that could usher in smaller, lighter batteries ...
Tesla to unveil electric 5-seat sedan next week
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US electric automaker Tesla Motors, which launched a breakthrough gas-free sports car last year, announced Thursday it will unveil in coming days a five-seat sedan, to roll off assembly lines by 2011.
