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misskimo
11-16-2005, 01:39 PM
EXTREME Nanoscale Lithium-Ion from A123 Systems

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A123Systems Unveils Lithium-Ion Battery Technology that Delivers Unprecedented Levels of Power, Safety and Life
URL: http://www.a123systems.com/html/news.html

Nanotech-Enabled Batteries Deliver up to 10X Longer Cycle Life, 5X Power Gains and 5-Minute Charge Time; Company Discloses Multi-Year Deal with Black & Decker to provide battery for its DEWALT brand of Power Tools

Watertown, Mass. – November 2, 2005 – A123Systems, developer of a new generation of Lithium-ion batteries, today unveiled its technology and announced that it is delivering batteries with unprecedented power, safety, and life as compared to conventional Lithium technology. A123Systems’ first battery is now in production and being delivered to the Black & Decker Corporation (NYSE: BDK). It will be first utilized by the corporation’s DEWALT brand, a leading manufacturer of power tools.

A123Systems’ battery technology delivers up to 10X longer life, 5X power gains and dramatically faster charge time over conventional high power battery technology, as validated by independent testing at Motorola and government research labs. A123Systems’ batteries use proprietary nanoscale electrode technology built on research at Massachusetts Institute of Technology (MIT) and exclusively licensed from MIT.

“A123's revolutionary technology will enable manufacturers to improve the performance and form factor of existing high-power portable devices and to transform products currently dependent on power cords and sockets into a new class of portable devices,” said David Vieau, CEO and president of A123Systems. “We expect that our technology will have the same impact on high-power products as the introduction of first generation Lithium-ion technology had on the development and commercialization of consumer electronics in the 1990s.”

A123Systems’ initial family of batteries is targeted at applications that require high power, high levels of safety, and longer life. These include power tools, advanced medical devices, hybrid electric vehicles, mobility products such as electric scooters, robotics, and consumer electronics.

DEWALT is using A123systems’ battery in a new, innovative, heavy-duty 36-volt power tool platform. The 36-volt power tools will provide users with increased levels of power and runtime, at a similar or less weight than their corded counterparts. Available in 2006, the new power tool line was designed from the ground up to ensure durability and reliability and to make optimum use of the increased power available from A123’s innovative battery technology. The line will include a hammerdrill, reciprocating saw, circular saw, impact wrench, rotary hammer, jigsaw, flashlight and combo kits.

A123Systems has seen considerable interest in its advanced battery technology across many applications. The company is working with the U.S. Department of Energy as part of a major undertaking to develop battery materials for future use in hybrid electric vehicles. As part of its work with the DOE, A123Systems has already completed two development phases of advanced battery technology. Preliminary performance results show a technology with great promise for the future of electric and hybrid electric vehicles.

Power, Safety and Life – What Makes A123Systems’ Batteries Unique:

High Power. A123Systems’ first product packs up to five times the power density of current rechargeable, high power batteries. In addition, the battery has the ability to recharge to 90% of its capacity in five minutes.

Intrinsic Safety. Unlike conventional Lithium-ion batteries, A123Systems' batteries employ new thermally stable, non-combustible active materials, enabling a safer cell and allowing cost reductions such as the elimination of unnecessary battery pack components. In addition, A123Systems uses an environmentally friendly chemistry.

Long Life. With up to 10X improvement in life over existing rechargeable batteries, A123Systems’ batteries can deliver thousands of cycles at high rates. Cycles refer to the number of times a battery can be charged and discharged before it no longer has any power remaining.
In addition to its high power products, A123Systems is working on a family of high-energy products that significantly improves upon the performance of existing Lithium-ion batteries used in notebook computers and cellular phones. This line of products will be introduced in 2006.

With more than 300 person-years of battery industry experience, the staff at A123Systems is made up of technology industry veterans and pre-eminent scientists from some of the world's leading battery companies and research institutions. A123Systems is led by David Vieau, and was founded by Dr. Yet-Ming Chiang, Dr. Bart Riley, VP of research and development, and Ric Fulop, VP of business development and marketing.

Having raised more than $32 million in funding, A123’s investors include Desh Deshpande (chairman of the A123 board), Qualcomm, Sequoia Capital, Motorola, North Bridge Venture Partners, MIT, YankeeTek and OnPoint Technologies, a strategic private equity firm funded by the United States Army.

About A123Systems
A123Systems is the developer of a new generation of Lithium-ion batteries that deliver previously unattainable power levels, safety and life to a wide range of applications. These batteries enable manufacturers to eliminate the power technology constraints they face in developing and building new products. Founded in 2001, A123Systems’ proprietary nanoscale electrode technology is built on initial developments from Massachusetts Institute of Technology.
A Breakthrough in high power battery performance
URL: http://www.a123systems.com/html/technology.html

A123Systems high power battery technology is based on new highly active nanoscale materials that are inexpensive, nontoxic, and extremely stable in electrochemical systems.

Product Availability

A123’s first products are being produced as cylindrical form factor cells. These cells have been extensively tested and successfully validated by multiple customers and are currently in mass production at our manufacturing facilities in Asia.

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Unprecedented Power
URL: http://www.a123systems.com/html/tech/power.html

The Power Game

A123Systems M1 cells offer the highest commercially available power density of any Li Ion chemistry: Our high power products are able to pulse at discharge rates as high as 100C and deliver over 3000W/kg, over an order of magnitude better than conventional Lithium-Ion cells and with their low impedance and thermally conductive design, A123 cells can be continuously discharged to 100% depth of discharge at 35C rate, a marked improvement over all other rechargeable battery alternatives.
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5 Minute Charge

A unique feature of A123Systems’ M1 cells is their ability to charge to high capacity in 5 minutes or less. That’s a significant improvement over traditional Li Ion, which typically requires more than 90 minutes to reach a similar level of charge. This unique capability offers a new level of convenience for users of cordless products. Fast charge will be a key enabler of practical electric drive vehicles; by combining fast charge with high energy, high power and safety A123Systems M1 batteries are the ideal solution for next generation electric motorcycles, PHEV and electric drive vehicles.

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Highest Thermal Conductivity

A123Systems has developed a packaging system that offers 4 times higher thermal conductivity than conventional Lithium-Ion cylindrical cells. Coupled with the industry’s lowest impedance, this allows the most efficient temperature management of any Lithium-Ion cell in the market. As a result, A123 cells can operate without the cooling systems that are required in many applications, which currently use higher impedance battery products.

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Intrinsic Safety
URL: http://www.a123systems.com/html/tech/safety.html

Intrinsic Safety

A123 M1 cells are intrinsically safe and eliminate the risk of explosions and thermal runaway associated with conventional Lithium-Ion batteries that use oxide active materials. To achieve this, the active materials in A123’s technology are not combustible and do not release oxygen if exposed to high temperature or in the event of battery failure or mechanical abuse.

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Intrinsic Overcharge Protection

A123 materials are designed to ensure all the Lithium is fully extracted from the cathode when the battery is fully charged. As a result safety issues relating to overcharge are eliminated because there is no Lithium available to plate on the anode in an overcharged state. This is in contrast to conventional Li Ion cells, which only extract half their Lithium content when they reach their upper cut-off voltage. Conventional Li Ion cells are easy to overcharge and once in this state they can continue to extract Lithium putting the cell in a dangerous mode and making it prone to fires and explosions.

Robust Mechanical Design

A123Systems uses patent pending laser-welded multi-plate tubular construction that is vibration and abuse tolerant. This design offers unsurpassed hermetic sealing with the lowest internal resistance, a key benefit for mission critical and medical devices or applications requiring extreme calendar life such as Hybrid Electric Vehicles.

Environmentally Friendly

While other battery technologies like NiCd and traditional Lithium-Ion employ heavy metals and elements that are known to be highly toxic or potential carcinogens. A123Systems M1 cells do not contain heavy metals and are environmentally friendly.


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Long Life
URL: http://www.a123systems.com/html/tech/life.html

Unsurpassed Life

A123Systems outstanding chemical stability and a flat plateau at a lower oxidation potential than other Li Ion chemistries provides our products with record life.

At low rates our M1 cells can deliver several thousands of cycles at 100%DOD, a feat unmatched by commercial Li Ion cells.

Our batteries meet the most aggressive hybrid electric vehicle cycle life requirements and at high rates with 100% DOD, our batteries are able to deliver unmatched life performance.

http://www.a123systems.com/images/charts/lifeCycleHighLow.gif
Wide Temperature Range

Whether your product needs to work in Alaska or Arizona, A123Systems M1 chemistry offers the widest temperature window of all Li Ion chemistries. Our cells are designed to deliver high power pulses at temperatures as low as -30 degrees C or as high as 70 degrees C.

http://www.a123systems.com/images/charts/lowTempPerf.gif
Lowest Impedance Growth

Impedance growth is one of the top failure modes of high power batteries and a major cause of power fade over the life of the battery. Our batteries are uniquely engineered (pat. pending) so their internal resistance (impedance) will decrease with their use. This is the opposite effect to most Li Ion cells which experience a growth in their internal resistance as they are cycled at high rates or temperatures. This is a significant benefit in applications requiring long calendar life such as hybrid electric vehicles or in devices that simply must work such as medical devices or mission critical systems.

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should be a fun year next year 2006

DavidH
11-16-2005, 01:48 PM
Makita and Dewalt have had Lithium-Ion powered tools out for a few months now.

Even thou that article is dated Nov 2 2005. It must be an old article. The Makita and Dewalt Li-ion tools have been in the stores a few months.

David

cdrking
11-16-2005, 01:56 PM
I just saw a 28 volt cordless system from Milwuakee. Very cool and heavy.

This was in Home Depot.

Jeff

misskimo
11-16-2005, 02:02 PM
thats not this battery , thats a battery that cant handle our type of discharge , this new one can

WillJames
11-17-2005, 06:59 AM
Very interesting!!!

misskimo
12-06-2005, 04:57 PM
more news

http://www.dewalt.com/us/articles/article.asp?Site=cordless&ID=1409

50feet
12-10-2005, 07:17 PM
Looking at that penatration video the 123 cell is 2x the size of a normal ion cells. It looks like a C or D size cell. Is there any capasity detail on this cell?

Most of the Ion drill batteries out now are 3 amps. If these are 3000 mah cells @ 3.6 volt cells and there are 10 per pack, those are going to be a couple of big packs. I wonder what the weight per cell is?

misskimo
12-10-2005, 08:14 PM
36 volts looks to be the running voltage , like a 18 volt battery for a drill , is somewhere around 21volts
I dont know but I dont care , 1000 discharges I can live with it and I can go to wallmark and get my packs , the Ion can handle the weight

50feet
12-10-2005, 08:39 PM
The volts are clear but as for capasity and weight, I am curios about because current C size ion cells weight 100+ grams each. So if these are 3 amp cells and you want to run 6000 mah your looking a 4+lbs for your packs. If they are less than 3 amps since they have a very high discharge, and they are close to the cell weight I listed running these in parallel is going to get heavy Ion or not.

I guess we will see shortly.

fitenfyr
12-10-2005, 11:21 PM
Well I was talking to someone in the R/C battery world awhile back and I can say based on this and what he said the future is in a round cell. :D

These are just the tip of the iceberg. He has been testing a cell very similar to this, but so far the manufacture will NOT sell them cells for R/C use.
I think the current paste type LiPo's and R/C have given some pause to the manufactures regarding liability and use.

There is also some technical issues involved due to charging with current chargers.

It's coming guys that's for sure. These current paste batteries are only temporary IMO.

I agree though using these cells could get heavy quick. :D

PDC
12-14-2005, 04:58 AM
Well I was talking to someone in the R/C battery world awhile back and I can say based on this and what he said the future is in a round cell. :D

These are just the tip of the iceberg. He has been testing a cell very similar to this, but so far the manufacture will NOT sell them cells for R/C use.
I think the current paste type LiPo's and R/C have given some pause to the manufactures regarding liability and use.

There is also some technical issues involved due to charging with current chargers.

It's coming guys that's for sure. These current paste batteries are only temporary IMO.

I agree though using these cells could get heavy quick. :D

Very interresting!

I think a PowerCube charger might be a good security for not having problems with charging future lipo cells, as one can programm it manually in the lipo mode.

I am happy with my PowerCube, like to have controll over my charger.

Thanks

Paul

50feet
12-14-2005, 08:00 PM
GGoodrum is saying that the cells in the Milwaukee tool packs out now will take 100 amp draws for 10 seconds.

I look and the 28 volt pack has 7 cells in it. thats like 4v per cell. I wonder if they will charge on your chargers. Mine does 3.6-3.7v cells.

50feet
12-15-2005, 08:53 PM
":the future is in a round cell"

I just saw the IB 4200 sub c cells.