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Common batteries are electrochemical cells. And they may get better thanks to living cells: the multicellular organism called brown algae.
普通電池都是電化電池，不過在活細(xì)胞——多細(xì)胞生物，褐藻的幫助下能夠得到優(yōu)化。

Lithium ion batteries include a binder. It holds the graphite nanoparticles that serve as the anode. The binder isn’t active, but researchers say it’s crucial in the battery’s stability. In theory, a silicon anode would make a better battery than graphite, but it’s not stable. Cracks form, and the battery degrades. The researchers thought—could a silicon anode succeed with a better binder?
鋰電子電池含有一個(gè)粘合劑，里面的石墨毫微粒即為陽極。這個(gè)粘合劑并不活躍，但研究人員稱它對電池的穩(wěn)定性有至關(guān)重要的作用。理論上說，硅陽極電池要比石墨陽極的好，但不穩(wěn)定，電池會破裂，也就不中用了。研究人員猜想——硅陽極和粘合劑結(jié)合能否奏效？

Seawater has a high concentration of ions, much like the battery’s electrolyte. So the researchers thought that an organism that survives in seawater might provide a natural binder. They tested alginate from brown algae. And it provided such an effective binder for silicon nanoparticles that the system didn’t degrade. The result? A battery that can store more energy, is less expensive, can last longer and wouldn’t use as many toxic chemicals in the manufacturing.
海水的離子濃度高，類似電池的電解液。研究人員推測，海洋生物很可能就是天然粘合劑。于是，他們用褐藻中的藻酸鹽進(jìn)行了一項(xiàng)測試，結(jié)果發(fā)現(xiàn)藻酸鹽正是硅陽極絕佳的粘合劑，電池沒有發(fā)生破裂。這表明了什么？這表明一種儲能量大，價(jià)格低廉，耐久性強(qiáng)，有毒材料使用少的電池誕生了。

The research is online in Science Express, in advance of publication in the journal Science. [Igor Kovalenko et al., "A Major Constituent of Brown Algae for Use in High-Capacity Li-Ion Batteries"]
這項(xiàng)研究發(fā)表在《科學(xué)速遞》網(wǎng)頁專欄里，相關(guān)《科學(xué)》雜志尚未出版。

The scientists will refine their alginate efforts, in the hope that fast-growing brown algae can help contribute to our fast-growing battery economy.
科學(xué)家們會在藻酸鹽研究方面精益求精，以期生長迅速的褐藻能夠助迅猛發(fā)展的電池經(jīng)濟(jì)一臂之力。

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