The Battery

January 18, 2010
Obscured by the handheld electronic devices that pervade our high-tech culture is the battery that powers them all. Technology journalist Schlesinger provides an illuminating historical account of a device whose enormous influence has been downplayed or misunderstood. The term “battery” is attributed to Benjamin Franklin, who arranged Leyden jars in a manner akin to a battery of cannon. But possible early electrochemical batteries—the centuries-old Baghdad batteries—discovered by archeologists in the 1930s remain controversial, as the appendix details. Schlesinger (Spycraft
) discusses the battery's evolution from the Italian Alessandro Volta's early 19th-century copper and zinc model through 21st-century advances in nanotechnology. In 1800 Volta constructed his famous “pile” of metal discs; touching each end generated a shock that could then be repeated. Yet the process remained mysterious for decades. While electric outlets replaced batteries in much of the 20th century, that process has recently been reversed, as laptop users surely appreciate. Combining enormous learning with a lively and entertaining style, this book deserves a wide general readership. 30 b&w line drawings.