li-ion battery pack testing equipment

li-ion battery pack testing equipment

BTS4000 is based on Neware 4th-generation testing system, and was introduced into the market in 2008. It's the upgrade version of the most popular battery test equipment series of BTS3000.

BTS4000 applies all the applications of BTS3000, plus EV battery pulse test, HPPC test and DCIR (direct current internal resistance) test.

Comparing with BTS3000, BTS4000 greatly improved the hardware response time, data acquisition frequency and result accuracy.

BTS4000 is the perfect test system in Neware's line of high quality, dependable test systems.

BTS4000 can be configured with multi-current range channels, which have a current control range of 0A to 3000A. These multi-current range channels can be configured for voltage ranges of 0V to 110V. The accuracy for current and voltage on these channels is ± 0.05% FS.

BTS4000 is now widely used by research institutes, colleges and universities and EV battery manufacturers all around our country.

The Picture on the left side is a high power BTS4000 with 2 channels.

The highest power of BTS4000 can be up to: 5V3000A or 60V500A or 110V180A

Typical high power model of BTS4000 could be: 60V20A-4CH, 60V40A-2CH, 60V60A-2CH, 60V100A-4CH, 60V200A-1CH, 60V300A-1CH, 60V500-1CH, 110V100A-1CH, 110V180A-1CH.

While electric vehicles offer many advantages--including reducing greenhouse gas emissions and the country's dependence on imported petroleum--at least one barrier stands in the way of their large-scale adoption: "range anxiety." The current 2014 electric Nissan Leaf, for example, has a range of just 84 miles on a fully charged battery. With support from the National Science Foundation, researchers at George Washington University, led by Stuart Licht, think they have developed a novel solution, and they're calling it the "molten air battery." It could extend EV range by a factor of 50, up to 4,000 miles or more on a charge.

These new rechargeable batteries, which use molten electrolytes, oxygen from air, and special "multiple electron" storage electrodes, have the highest intrinsic electric energy storage capacities of any other batteries to date. Their energy density, durability and cost effectiveness give them the potential to replace conventional electric car batteries, said Licht, a professor in GWU's Columbian College of Arts and Sciences' Department of Chemistry.

The researchers started with iron, carbon or vanadium boride for their ability to transfer multiple electrons. Molten air batteries made with iron, carbon or vanadium boride can store three, four and 11 electrons per molecule respectively, giving them 20 to 50 times the storage capacity of a lithium-ion battery, which is only able to store one electron per molecule of lithium. "Molten air introduces an entirely new class of batteries," Licht said.

Other multiple-electron-per-molecule batteries the Licht group has introduced, such as the super-iron or coated vanadium boride air battery, also have high storage capacities. But they had one serious drawback: They were not rechargeable. Rechargeable molten batteries (without air), such as a molten sulfur battery, have been previously investigated, but are limited by a low storage capacity.

The new molten air batteries, by contrast, offer the best of both worlds: a combination of high storage capacity and reversibility. As the name implies, air acts as one of the battery electrodes, while simple nickel or iron electrodes can serve as the other. "Molten" refers to the electrolyte, which is mixed with reactants for iron, carbon or vanadium boride, then heated until the mixture becomes liquid. The liquid electrolyte covers the metal electrode and is also exposed to the air electrode.

BTS4000 is based on Neware 4th-generation testing system, and was introduced into the market in 2008. It's the upgrade version of the most popular battery test equipment series of BTS3000.
BTS4000 applies all the applications of BTS3000, plus EV battery pulse test, HPPC test and DCIR (direct current internal resistance) test.
Comparing with BTS3000, BTS4000 greatly improved the hardware response time, data acquisition frequency and result accuracy.

BTS4000 for HPPC test

According to the test situation mentioned in the manual, 

BTS4000 enables you record data for those pulses at high frequency and for rest at a relative low frequency without generating many unnecessary data. 

And DCIR value is easily handled by marking the DCIR records

Or setting the DCIR conditions, as shown in the following image. 

And by collapsing the data, showing you the first and the last record of the rest step, 

you can easily navigate to the target record and calculate pulse power value. 

An automatically pulse power calculation is also under designing now.