Portable equipment leading power industry development has been improved in all aspects

A big problem in the current is: whether the battery can meet the needs of the development of these portable devices? Or will they be forced to give birth to a new class of energy storage devices, such as micro fuel cells, because of the "limit"? However, the problem is that the battery will continue to exist for a long time. Advances in semiconductor technology are providing better power management, and the principles of battery chemistry are improving in every respect. At the same time, higher demand for energy efficiency will also make the battery charger and adapter challenges, their development will also play a very important role in the power supply of portable devices.

Portable rechargeable battery (lithium ion, lithium polymer, nickel metal hydride, nickel cadmium) the global market is expected to reach 1 billion 100 million in size in 2005. Most of the sales will be for mobile phones and their variants. The dominant chemical battery is a lithium ion battery, which is expected to grow from 664 million in 2005 to about 1 billion 200 million in 2010, with an average annual growth rate of CAGR.

At present, the company focused on lithium chemical properties, so that the battery life is the longest. It is a way to increase the energy storage capacity by adding a controllable number of silicon in the graphite anode of lithium ion battery. System level power management (including battery charging) is another way to get the highest performance of portable devices. Among them, the complete power management solutions and efficient use of energy is the key to the design of portable products.

According to Communications Industry Researchers data for the mobile communication application, IC power supply and power management related to the overall market of discrete components is expected to reach $7 billion 200 million in 2008. Battery chargers, fast charge IC and battery power monitoring IC ensure the efficient operation of the battery in portable devices. Due to the advances in semiconductor technology, new portable systems do not necessarily require more or higher energy density batteries. Currently, semiconductor companies are developing a variety of more intelligent use of existing battery technology IC products.

, battery charger and adapter has made continuous progress. Portable devices external AC / DC power market is expected to grow from 884 million in 2005 to about $1 billion 200 million in 2009, CAGR was $8.7%. Some new algorithms have been able to shorten the battery charging time. In addition, the industry has also been a number of new battery charging methods. For example, the new USB On-the-Go (USB-OTG) specification is expected to be widely used in the next generation of portable devices, the specification will be achieved through the USB cable charging for portable devices.

In portable devices in the future will benefit from the three different ways of power supply: progress, battery chemistry principle of semiconductor technology and the progress of fuel cell. Competition between power supply solutions will be almost as exciting as the competition between portable device manufacturers