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| Much smaller.Much lighter.Much better performance. As digital products such as mobile phones, notebook PCs, digital cameras, MP3 players and palm-held devices become more a part of everyday life, consumers are more attuned to the work bein done to reduce the size and weight of these products while enlarging their capacity and functionality. What consumers may not be thinking about is the demands that technological advances place on energy resources. The smaller and more powerful a product becomes, the more critical the role of energy — that is, batteries — becomes. Batteries must be able to power products for longer periods; they must be more dependable as our reliance on them grows. So the need for reliable, high-density, high-power energy sources is one of NEC TOKIN’s most pressing concerns. |
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NEC TOKIN is the only portable device manufacturer with comprehensive technologies for both batteries and capacitors. Our unique solutions, give us an advantage in the marketplace. To make optimized energy supplies, we creatively combine products from our diverse lineup. Our high-energy devices, for example, provide superior stamina in diminutive products by increasing energy density, and our high-power devices cut power consumption even as a device’s functionality becomes more complex.
An NEC TOKIN case study: lithium ion batteries. We produce cobalt batteries, which, despite their small size, have a very high energy capacity. We also produce manganese batteries, which are perfect for use in high-capacity products thanks to their top-notch charging and discharging characteristics. In fact, we’ve developed an exclusive laminated manganese-type battery, a strategic product ideal for use not only in mobile equipment but also in other important, leading-edge products, including electric-powered automobiles, carts, power tools and uninterruptible power sources (UPS). This innovative battery is also expected to find a home in hybrid automobiles. Complementing our battery innovations is our piezoelectric inverter, a low-noise, high-efficiency and very small unit that operates on a totally different principle than conventional electromagnetic induction-type transformers. This product is garnering much attention as an energy source for backlights in liquid-crystal displays (LCD), which are becoming larger and more sophisticated every year. |
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• Liquid crystal television :
Piezoelectric inverter |
• HDD audio player :
Lithium ion rechargeable battey, Electric double-layer capacitor |
• DVD player :
Electric double-layer capacitor, Transformer |
• Digital video camera :
Lithium ion rechargeable battery, Electric double-layer capacitor |
• PDA :
Proton polymer battery, Electric double-layer capacitor |
• Mobile phone :
Lithium ion rechargeable battery, Electric double-layer capacitor |
•Notebook PC :
Electric double-layer capacitor, Piezoelectric inverter |
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Lithium ion rechargeable batteries
More compact than other rechargeable batteries, lithium ion batteries are ideal for compact and lightweight portable devices. Two kinds of lithium ion rechargeable batteries are available: the manganese-type, which feature an adequate safety protection circuit, and the cobalt-type, which have higher capacity. |
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Electric double-layer capacitors
These capacitors can discharge and recharge within seconds. The many models we produce can be used in a broad range of energy backup and power-assist applications. |
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Transformers
Transformers support the high-density increases and decreases of electricity’s voltage and current. NEC TOKIN’s exclusive material technologies have yielded products suited to a full spectrum of applications. Our toroidal transformer, for example, exerts less heat influence and distributes less low-radiation noise to the parts surrounding it. |
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Piezoelectric inverters
Superior safety yet able to effectively reduce noise, these inverters realize high efficiency in a thin, compact design. They are ideal for driving the backlights in a liquid crystal display (LCD). |
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Proton polymer batteries
These batteries are the world’s first to use conductive polymer in both the positive and negative electrodes. Able to be discharged and recharged several thousand times, they are ideal for use in such applications as memory backup in compact information terminals. |
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