A new breed of functional, high-energy lithium batteries is changing the shape of next-generation products. Light and portable electronic devices, starting from notebook computers to handheld medical equipment to power tools, are benefiting from constant developments in energy density, together with from the popularity of thin-format laminate cells. For design and style engineers, the bottom line is that compact products together with extended charge times are more possible than ever.
Without a doubt, designers of consumer items are carrying out exactly that. Apple Inc. comes with notably previously used laminate-style lithium polymer battery packs into great advantage in the IPod together with iPod, along with the paper-thin Mac Book Air.
General Motors and Nissan are actually employing similar laminate-style technology on the Volt and Leaf, whereas Tesla Motors is utilizing 6,800 cylindrical lithium-ion batteries within its remarkably marketed Roadster. On the other hand, lithium is actually getting a major niche within the health care industry, whereby cart-based instruments are which gives way to portable screens.
Some of the keys to the recent rise of lithium-ion cells can be the consistent increase in capacity. Just lately, two.2Amp-hour cobalt-based lithium power packs were all the rage, however in the previous five-years; they're replaced by lithium cells that utilized nickel-manganese, and then nickel-aluminum. Throughout this march of success, battery capacities went up by to 2.6A-hr. and after that 2.9A-hr.
Around June, Panasonic presented the NCR18650A, a good lithium-ion cell that once again lengthens battery pack capacity, this time to 3.1A-hr. Later on this year, some battery power manufacturers would like to move to 3.4A-hr. Plus 4.0A-hr. batteries in the popular 18650 form aspect (cylindrical battery packs slightly bigger than an AA) might be released as soon as 2013, they assert.
Cylindrical cells push the envelope Technical engineers point out that the higher-energy breed of power packs is actually opening innovative applications in countless industries, but specifically in healthcare. There, customers are making use of these items in portable ultrasound, portable o2 concentrators, and also portable workstations for keeping track of their patients. Furthermore, a more traditional set of consumers still is utilizing lithium-ion as a replacement for nickel-metal hydride power packs in notebook computers, cellular phones, digital cameras, and also power tools.
Laminate batteries make a comeback Even within the lithium-ion group, on the other hand, a sub-category is gaining momentum. Lithium polymer, a branch of lithium-ion that employs a flat laminate composition, is definitely reaching a growing collection of programs. "There's definitely a trend toward lithium polymer in portable devices because there's a race to make them all thinner," TI's Barsukov says. "All of the newest, coolest gadgets out there, starting with Apple and Android devices, are using polymer because of the thin cells and the high energy density."
Definitely, Apple's Mac Book air measures 0.67 "in thickness, thanks to some extent to the utilization of lithium polymer batteries. Lithium polymer presents some other advantages. One of them:
Overall flexibility, allowing engineers to simply adjust a design in order to suit a approved space Aspect ratio, rendering it simpler to create a large, flat cell Higher C-rate, which makes it possible to supply a lot more current in less time Lithium polymer offers many alternatives because it uses a laminate structure that has an electrolyte which can range between water to gel to solid. Not like conventional lithium-ion cells, that happen to be contained in a metal can, lithium polymer cells reside in a minimized foil container, very much like any potato chip bag. The multi-layered bag helps to keep liquid from moving into the battery as well as helps prevent electrolytes from leaking out, however it gives another advantage: It's far lighter in weight and slimmer compared to the cylindrical metal covering of the 18650. Of which, consequently, enables us to develop a battery pack that's similar in form to a loose-leaf notebook.
In addition, lithium polymer cells offer higher rates of discharge. The C-rate -- a parameter which describes how long it requires to completely discharging a battery -- is really a lot higher in polymer batteries than in cylindrical or even prismatic lithium-ion batteries. While traditional lithium-ion power packs top out at C-rates of roughly 2, lithium polymer batteries is capable of having C-rates approaching 15 or more. The capability to discharge current on faster rates results in greater power for the apps.
Without a doubt, designers of consumer items are carrying out exactly that. Apple Inc. comes with notably previously used laminate-style lithium polymer battery packs into great advantage in the IPod together with iPod, along with the paper-thin Mac Book Air.
General Motors and Nissan are actually employing similar laminate-style technology on the Volt and Leaf, whereas Tesla Motors is utilizing 6,800 cylindrical lithium-ion batteries within its remarkably marketed Roadster. On the other hand, lithium is actually getting a major niche within the health care industry, whereby cart-based instruments are which gives way to portable screens.
Some of the keys to the recent rise of lithium-ion cells can be the consistent increase in capacity. Just lately, two.2Amp-hour cobalt-based lithium power packs were all the rage, however in the previous five-years; they're replaced by lithium cells that utilized nickel-manganese, and then nickel-aluminum. Throughout this march of success, battery capacities went up by to 2.6A-hr. and after that 2.9A-hr.
Around June, Panasonic presented the NCR18650A, a good lithium-ion cell that once again lengthens battery pack capacity, this time to 3.1A-hr. Later on this year, some battery power manufacturers would like to move to 3.4A-hr. Plus 4.0A-hr. batteries in the popular 18650 form aspect (cylindrical battery packs slightly bigger than an AA) might be released as soon as 2013, they assert.
Cylindrical cells push the envelope Technical engineers point out that the higher-energy breed of power packs is actually opening innovative applications in countless industries, but specifically in healthcare. There, customers are making use of these items in portable ultrasound, portable o2 concentrators, and also portable workstations for keeping track of their patients. Furthermore, a more traditional set of consumers still is utilizing lithium-ion as a replacement for nickel-metal hydride power packs in notebook computers, cellular phones, digital cameras, and also power tools.
Laminate batteries make a comeback Even within the lithium-ion group, on the other hand, a sub-category is gaining momentum. Lithium polymer, a branch of lithium-ion that employs a flat laminate composition, is definitely reaching a growing collection of programs. "There's definitely a trend toward lithium polymer in portable devices because there's a race to make them all thinner," TI's Barsukov says. "All of the newest, coolest gadgets out there, starting with Apple and Android devices, are using polymer because of the thin cells and the high energy density."
Definitely, Apple's Mac Book air measures 0.67 "in thickness, thanks to some extent to the utilization of lithium polymer batteries. Lithium polymer presents some other advantages. One of them:
Overall flexibility, allowing engineers to simply adjust a design in order to suit a approved space Aspect ratio, rendering it simpler to create a large, flat cell Higher C-rate, which makes it possible to supply a lot more current in less time Lithium polymer offers many alternatives because it uses a laminate structure that has an electrolyte which can range between water to gel to solid. Not like conventional lithium-ion cells, that happen to be contained in a metal can, lithium polymer cells reside in a minimized foil container, very much like any potato chip bag. The multi-layered bag helps to keep liquid from moving into the battery as well as helps prevent electrolytes from leaking out, however it gives another advantage: It's far lighter in weight and slimmer compared to the cylindrical metal covering of the 18650. Of which, consequently, enables us to develop a battery pack that's similar in form to a loose-leaf notebook.
In addition, lithium polymer cells offer higher rates of discharge. The C-rate -- a parameter which describes how long it requires to completely discharging a battery -- is really a lot higher in polymer batteries than in cylindrical or even prismatic lithium-ion batteries. While traditional lithium-ion power packs top out at C-rates of roughly 2, lithium polymer batteries is capable of having C-rates approaching 15 or more. The capability to discharge current on faster rates results in greater power for the apps.
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