superbattery1

Developed by Tsinghua University and other units of lead-acid Laptop Battery recovery super technology, has entered the stage to promote the industrialization of formal recruitment in the country at all levels of the regional agent.

In all types of batteries, lead-acid batteries the largest share, accounting for the secondary battery market, according to 75%, is widely used in automotive, communications, finance, electric power, railway, aviation, marine, mining and other industries. Waste of the environmental pollution caused by the dell laptop battery has become the world’s problems. China more than 5000 each year about 10,000, more than 300,000 tons of spent lead-acid batteries. Super recovery of lead-acid battery technology can be used on all types of lead-acid batteries for recovery activation. Detection by the Ministry of Information Industry, confirmed that the recovery rate of more than 96%.

It is reported that a vastLatitude D505 reservoir of the technology market. In 2002, domestic output of lead-acid batteries, nearly 80 billion yuan, and each year to grow at a rate of 30%. Super use of lead-acid battery technology used to recover the battery recovery, the average cost to buy a new battery less than 1 / 4, which will save users a lot of money. With the industrialization of the technology promotion, running into billions of dollars annual output value of Latitude D510 the used batteries is expected to recover activation of the birth of industry.
Car made in 2003 to become a Fashion. U.S. Sanxiang the 1.7 billion acquisition of vehicles, the United States and 2 billion compaq 319411-001 , compaq presario 2100 battery , compaq presario 2500 Latitude D520 yuan to build the automotive industry in Yunnan City; desire to create the Central Plains Xinfei Special Purpose Vehicle manufacturing base, the first batch of new refrigerated trucks have been flying off the assembly line; production Wuliangye Liquor is riveting enough a strong production line to the car; But the most noteworthy in the last year, none other than the first wave of non-automotive business, “movement” of listed companies in Shenzhen BYD Latitude D600.

In the acquisition of Xi’an Qinchuan car, Geely became the second following the private car in BYD enterprises in the automotive sector is a relatively unfamiliar name, and its head is famous Wang Chuanfu. Wang Chuanfu assets in 2003 to 328 million U.S. dollars to board the “Forbes” magazine “China Peregrine list,” ranked No. 13, followed in November 2003 in the United States, “Business Week” and “Stars of Asia.”

1. When the output / load current input current limit, or more than Laptop Battery when the input power was removed, an ideal diode components from the battery to provide power;

2. Ideal diode (rather than directly connected to a battery load) load to the power supply to enable a full charge the battery in the external power supply was removed before the full charge to keep, and make the device even in a fully depleted The battery case was also able to work;

3. Once the external power supply is removeddell laptop battery, the output voltage drop, until the ideal diode forward bias was imposed so far. Canada has been a positive bias will be followed by an ideal diode batteries to provide power to the load;

4. If the battery is the only available power supply or load current exceeds the input current limit has been set up, the battery will be laid in a BAT and the OUT pin 5081Pbetween the ideal diode circuits automatically transfer power to the load;

5. Ideal diode Inspiron 700m(as well as the OUT pin on the recommendation of the capacitor) IC can be made without the use of a large body of the capacitor to deal with a large transient load and the AC adapter or USB VBUS connect / disconnect mode;

6. Low loss ideal diode by reducing power and the path of the IR drop extended battery run timeInspiron 710m.

Linear Technology’s power management devices to address the above-mentioned series of IC design problems. In this area, has two main features of the new product is the LTC4085 USB power management and high-voltage power LTC4089’s battery charger Manager

USB Power Manager - LTC4085

LTC4085 is a portable USB devices for theF5136 monolithic autonomous power manager, ideal diode controller and independent-linear battery charger. LTC4085 with PowerPath control feature from the USB VBUS or AC power adapter to power the system load, and single-cell lithium ion / polymer rechargeable batteries. With USB current limit specifications with, LTC4085 will be in the system load current increases automatically reduce the battery charge current. In order to ensure a full battery charge in the bus when the connection has not been used in the state of the IC through the USB bus to transfer power to the load, and the312-0306 lack of access to power from the battery. Once the power has been removed, the current through an internal low loss ideal diode 200mΩ from the battery to the load flow, thus minimizing the pressure drop and power consumption. Provides for an optional external drive GATE PFET devices to connect the circuit board, so that the application needs to ideal diode impedance312-0305, the total fell below 30mΩ.

From what I've read, the 3D cell design that this battery uses seems to be a compromise between cost Laptop Batteryand performance. I'm guessing that they wanted to develop manufacturing capacity and get some revenue coming in as quickly as possible. According to Firefly's website, a more advanced version is forthcoming:

"Firefly is preparing to launch its carbon-graphite dell laptop battery foam grid technology in two phases. In the first stage, dubbed “3D”, the new grid material replaces the conventional negative plate in the battery. This results in some weight reduction (in the area of 15 – 20% for slow discharge single batteries; up to 50% for fast discharge battery pack applications), and a battery that is highly resistant to the effects of sulfation. The second phase of implementing the technology, called “3D2“, replaces both the negative and positive Inspiron 4100plates within a battery with the new carbon-graphite foam grid material. This can result in weight reduction of up to 50% and a battery that is almost impervious to the effects of both sulfation and corrosion, along with many other advantages. For a detailed description on these two modes Inspiron 2500of implementation, visit the “Firefly Technology” area of the website."

From the scant data that I've found, the 3D version appears to retain about 90% capacity at the 600 cycle mark, maybe farther (1000 cycles?). As yet, I have no clue how the more advanced 3D2 version will perform.
Okay, I finished wading through the "white paper" pdf file on Firefly's website. It looks like the holdup for theLatitude CPX 3D2 version involves optimizing the chemistry of the positive plates:

"Conversion of the conventional positive plate to a foam electrode eliminates positive grid growth and corrosion, but it also introduces a different set of challenges. Various foams used in the positive plate are affected to varying degrees when exposed to extreme
overcharge conditions."

"Firefly is actively refining and stabilizing foam chemistry as well as increasingLatitude C600 the robustness of the foams used in positive plates through manipulation of combinations of both foam chemistry and processing, as well as methods of plate preparation. At present, these chemistries and methods are tradesecret intellectual property, for which Firefly is actively pursuing additional patent protection."