spill over into

ケータイ，スマートフォンの（ヘビー）ユーザーにとってバッテリーの容量は死活問題なのかもしれません。が，そんな人に朗報です！もう少ししたら大容量のバッテリーがお目見えするようです。
記事のspill over intoにはニヤッとさせられました。ふつうspill overは「あふれる，はみ出る」という意味ですが，クルマでは採用されているほどの技術が「あふれ出て」一般向けになるということで，イメージしやすいですね。「応用/転用される」「波及する」「降りてくる」あたりの日本語になりましょうか。（UG）

Why Your Phone's Battery Life Is Underwhelming

（前略）

In other words, even as researchers are able to pack more energy into batteries, we don't see longer-lasting phones – we see phones that last about the same amount of time as before, but with a thinner profile.

But now the story is beginning to change. Mark Stoker, vice president of sales at K2 Energy Solutions, a Nevada battery-research company, says that "lithium-ion chemistry has almost reached its potential for capacity." In other words, at some point, lithium-ion batteries simply will not get any better. Physics will stand in the way.

However, Mr. Stoker's company and others are working on new kinds of batteries that could offer "massive jumps in battery life and capacity." And, he says, this new technology will be ready within the next year or two.

K2 Energy researches lithium-iron phosphate batteries, which can be charged and discharged about twice as many times as lithium-ion without losing their capacity and can withstand the high temperatures that cause the batteries in most electronics to degrade quickly. Lithium-iron can't yet pack as much power into a small space as lithium-ion, but Stoker says the company is seeing rapid improvements. The technology already appears in electric cars, and may soon spill over into consumer devices as well.

There are other new technologies on the horizon, too. Lithium-imide and aluminum-ion batteries promise anywhere from 10 percent to 50 percent more energy in the same amount of space as a lithium-ion battery, longer overall battery life, faster charging, and better reaction to heat. And some can be created with the same equipment as lithium-ion batteries, which means that, in theory, they'll cost about the same.

"These improvements will spill over into the consumer industry ... if there's a demand," says Harris. Users want phones that don't need babysitting throughout the day – but they also want faster, better, smaller devices. It'll take smart engineers, or at least smart marketers, to find the right balance. So cheer up, smart phone users: You might not be tethered to that wall outlet for much longer.

http://abcnews.go.com/Technology/phones-battery-life-underwhelming/story?id=17565676#.UIxiAhyPcl4