Ener1, Inc. Presents Advances in Battery Technology at the 53rd Annual Meeting of the International Society of Electrochemistry.

Business Editors/Technology Writers

DUSSELDORF, Germany--(BUSINESS WIRE)--Sept. 18, 2002

South Florida based Ener1, Inc. (OTCBB:INPM), an emerging leader in mobile power and clean energy solutions, is presenting several technical papers during the 53rd Annual Meeting of the International Society of Electrochemistry taking place here this week. The papers relate to the company's developments in Lithium-metal and Lithium-polymer battery materials, chemistry, manufacturing, and control processes.

Scientists from Ener1, Inc.'s research and development group are speaking on several topics of advanced battery technology, including breakthroughs in non-destructive measurement and control of manufacturing processes as well as presenting other important papers describing the company's R&D achievements and resulting intellectual property.

Ener1 will deliver five technical presentations during the program. The presentation titles are as follows:

1. Electrolytic Nickel-Oxides in the Cathodes Of Lithium

Batteries - R. Apostolova, V. Nagirrny, Ukrainian State

Chemical Technology University, Dnepropetrovsk, UA; E.

Shembel, Ener1, Fort Lauderdale, FL, USA

2. Modifying Systems for Lithium-Polymer Power Sources - O.

Chervakov, E. Shembel, P. Novak, ENER1, Fort Lauderdale, FL,

USA; L. Neduzhko, N. Globa, I. Koval, T. Oliynik, Ukrainian

State Chemical Technology University, Dnepropetrovsk, UA

3. Non-Destructive Control Method Of Solid Electrolytes and Power

Sources On Their Basis - V. Redko, E. Shembel, P. Novak, T.

Pastushkin, O. Chervakov, Y. Kalinushkin, Ener1, Fort

Lauderdale, FL, USA; V. Khandetsky, P. Grebenkin, O. Kolomoez,

A. Kvasha, Ukrainian State Chemical Technology University,

Dnepropetrovsk, UA

4. Studies of the Transport Properties of Li-Ion Into Lithium

Batteries - E. Shembel, K. Kylyvnyk, Ener1, Fort Lauderdale,

FL, USA, V. Tysyachny, R. Apostolova, V. Nagirny, E Kozina,

Ukrainian State Chemical Technology University,

Dnepropetrovsk, UA.

5. Anodes for Lithium-Ion Batteries Based On Modified Natural and

Metallurgical Graphites - E Shembel, P. Novak, Ener1, Fort

Lauderdale, FL, USA; N. Globa, A. Baskevich, N. Zaderey, L.

Vishnyakov, Yu Pustovalov. Ukrainian State Chemical Technology

University, Dnepropetrovsk, UA, Ukrainian State Chemical

Institute for Problems of Material Sciences of NASU, Kiev, UA

The subjects of the five papers Ener1 is presenting represent the company's achievements in the field of lithium power sources and demonstrate Ener1's commitment to furthering both the theoretical and applied aspects of this strategic technology. Ener1's developments relate to a wide range of promising electrochemical systems for use in high-energy lithium-metal and lithium-polymer secondary batteries.

Dr. Elena Shembel, Ener1's Director of Research & Development stated, "Our presenters, Doctors Chervakov and Kylyvnyk, are representing the results achieved by the Ener1's R&D team. Chervakov and Kylyvnyk will discuss Ener1's unique and highly-efficient lithium-metal and lithium-polymer secondary battery technology and processes. Specifically, the presentations relate to the development of a new polymer electrolyte for lithium-metal and lithium-ion secondary batteries and new non-destructive, non-contact control methods of the materials and direct control - on their basis - of the manufacturing process of lithium batteries. Additionally, the presentations describe newly-developed electrode materials for lithium secondary batteries. Ener1's business model includes both the marketing of unique lithium-metal secondary batteries and the licensing of the company's proprietary technology and materials for lithium-ion and lithium-polymer batteries to third parties."

The Ener1 R&D Team includes over a dozen PhD's, possessing research and development skills in electrochemistry, material science, physics, as well as manufacturing. The company's team of scientists has published hundreds of scientific papers and holds numerous patents and patents pending. Ener1 is now completing its $20 million Fort Lauderdale, Florida battery production facility and expects to begin operations at the plant during the fourth quarter.

About Ener1, Inc.

Ener1, Inc. (OTCBB:INPM), based in Boca Raton, Florida, is the new trade name for Inprimis, Inc. The company leverages its expanding portfolio of patent-pending technologies and advanced digital media technology to develop, manufacture and distribute products and services for a variety of commercial and government markets.

For more information, visit the company's Web site at http://www.ener1.com or call 561/997-6227.

Safe Harbor Statement

This release contains forward-looking statements within the meaning of the Federal Private Securities Litigation Reform Act of 1995. These forward looking statements involve risks and uncertainties, including, but not necessarily limited to, the change in control of Ener1, Inc. and dilution to existing shareholders of Ener1, Inc. caused by the transactions with Ener1 Group, Inc., the history of operating losses incurred by Ener1, Inc. and its need for additional capital, the lack of any operating history for the development stage Ener1 battery business, the need for additional capital for the Ener1 battery business, the ability to enter into and receive revenue from new contracts, the rate of development of the information appliance market, the successful development and market acceptance of new products and services, the degree of competition in the market for such products and services, competitive pricing practices, dependencies upon key personnel, and low barriers of entry into the software development and services markets. Further, a significant portion of the company's sales is derived from a limited number of customers, the loss of one or more of which could adversely impact operating results. Some of these and other risks are detailed in the company's annual report on Form 10-K for the year ended December 31, 2001, as well as in the company's other filings with the Securities and Exchange Commission. Such risks and uncertainties could cause actual results or performance to differ materially from any future results or performance expressed or implied in the forward-looking statements included in this release.