Electrochem Automation Inc (EAI in abbreviation) was founded in 1984 in California, U.S.A. for providing battery testing instruments and production equipments. At that time EAI provides lithium and Nickel Metal Hydride battery technologies to various battery manufacturers.

In 1994, Electrochem Automation( Shanghai) Co., Ltd. was established  to manufacture NEXcell® rechargeable batteries, battery packs, various quick chargers and solar energy system to fulfill green world's needs.

With a spirit of continuous innovation, EAI R&D team devotes all efforts to developing advanced rechargeable batteries and chargers to lead the market. Our products are distributed widely worldwide, including America, Europe, Australia, Japan, Taiwan and Southeastern Asia market. EAI knows rechargeable batteries and chargers well and would provide total power solution.

Production Facilities
EAI's automatic cell production line comprised by advanced U. S-made equipments and  continuous innovation of our experienced battery engineers. The production process includes electrode fabrication, cell assembly, formation and inspection.
Electrode Fabrication
Fully automatic electrode fabrication lines use foam nickel, expanded metal, or nickel plated porous steel (NPPS)as the current collector for the nickel hydroxide positive electrode and the metal hydride alloy negative electrode. The electrode line equipped with a proprietary coating head for obtaining uniform coating of the electrode material to achieve high cell capacity distribution and a high quality calendar roller for getting dense packing of the electrode material to achieve high cell capacity loading.
Cell Assembly
Automatic cell assembly lines produce various types of cylindrical cells such as AAAA, AAA, AA, A, Sub-C, C, D, F,2 D and 9V cells. The assembly line was designed to take care key issues in the cell assembly process as following: low resistance electrode tabbing, round winding form, electrode shorting prevention and detection, accurate electrolyte filling, rigid crimping.
Formation and Inspection
CPU board controlled automatic formation equipment uses four probes method to get accurate sorting of the cells. True voltage reading was obtained by using sharp gold plated Berilium copper pin. Well characterized formation steps for each size of cells ensure the cells to have complete formation and to obtain their best cycle life performance.

Aging of the cells is a plus for our customers. After two to four weeks of aging, cells were tested for open circuit voltage and impedance. Appearance of the cells will also be inspected before shipping.

Latest News

Independent Renewable Electricity Supply System, through the wind/solar hybrid energy management system will come soon.  more info.

LED lights are developed for green power needs. More info.


Lithium power system was put into NEXcell products range, including Lithium-ion, Lithium Polymer, LiFePO4, controlling circuitry and chargersmore info.


NEXcell developed low self discharge, ready to use battery EnergyON: AA, AAA consumer & industrial low self discharge battery. Ready to use Ni-MH battery EnergyON® C 4500mAh, D 9000mAh and 9V 200mAh are available in early 2007 more info.


NEXcell High/ Low Temperature Battery was introduced. Low temperature Two Way Radio Battery available.

High-T battery

Low-T battery

NEXcell consumer battery AA 2700mAh, AAA 1000mAh was put into mass production. more info.

NEXcell introduced unique, smart, fast & battery protective 4-independent channel AA/AAA/9V charger. more info.

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