SANYO To Mass Produce New Large-capacity High-voltage Lithium-ion Battery Systems

November 17, 2009 by Jeff Shepard

SANYO Electric Co., Ltd. announce that it has developed two new large-capacity high-voltage lithium-ion battery systems, and will begin mass production of the new products in March 2010.

In recent years, there has been a lot of interest in electric vehicle technology as a replacement for the internal combustion engine, as part of a move towards better efficiency and the use of clean energy in order to achieve a low-carbon society.

With features including high energy density, superior safety, and high voltage, SANYO has been leading the way in the market for lithium-ion batteries used in information devices such as laptop computers and mobile phones. Since around 2004, SANYO has been using its technologies to develop large-scale lithium-ion battery systems in order to help contribute towards the realization of a low-carbon society. After extensive verification testing and trial application in and outside the company, SANYO now has large lithium-ion battery systems that are ready for the market.

SANYO will launch a lineup of two large lithium-ion battery system models. The Standard Battery System for Energy Storage (DCB-101) can be easily incorporated into existing systems as part of hybrid schemes using solar cells, to store electricity generated by wind power, or for electrical output stabilization. It can also be used as a back-up power source for servers or mobile phone base stations. Additionally, the Standard Battery System for Electric Motors (EVB-101) can be used to power light electric vehicles that are in the R&D or small-scale mass production stages.

Through the introduction of these two new products, SANYO is helping to create new markets for lithium-ion batteries, while contributing towards the realization of a low-carbon society.

Based on 18650-size cylindrical lithium-ion batteries (18 x 65mm), which are most often used for laptop computers, the new products enable several dozen to several hundred battery cells to be used in one system. Normally, the mere combination of single batteries can create problems for safety, reliability, and lifespan. However, SANYO has developed parallel and series battery control technologies for the basic components of the new products, based on years of experience with laptop battery packs. The company has also added more of its own technologies to ensure additional reliability and heat management. After identifying problem points through trial product evaluation and field testing, SANYO has further improved the battery packs, and they are now ready for mass production.