tailieunhanh - Battery Basics Everyone Should Know phần 1

Pin nhóm người sử dụng có yêu cầu tôi viết một phiên bản chỉnh sửa của pin trong một thế giới di động. Ấn bản đầu tiên được xuất bản vào năm 1997. Có nhiều thay đổi kể từ đó. Xuất bản đầu tiên của tôi trong hình thức cuốn sách có tựa đề Tăng cường liên kết yếu nhất. Đó là, một phần, một bộ sưu tập của pin mà tôi đã viết. | Batteries in a Portable World 3 handbook on rechargcdbte batteries for nooengineers by Isidor Budanann Cadex Electronic Inc. SECOND EDtnox Part One Battery Basics Everyone Should Know Author s Note Battery user groups have asked me to write an edited version of Batteries in a Portable World. The first edition was published in 1997. Much has changed since then. My very first publication in book form was entitled Strengthening the Weakest Link. It was in part a collection of battery articles which I had written. These articles had been published in various trade magazines and gained the interest of many readers. This goes back to the late 1980s and the material covered topics such as the memory effect of NiCd batteries and how to restore them. In the early 1990s attention moved to the nickel-metal hydride NiMH and the articles compared the classic nickel cadmium NiCd with the NiMH the new kid on the block. In terms of longevity and ruggedness the NiMH did not perform so well when placed against the NiCd and I was rather blunt about it. Over the years however the NiMH improved and today this chemistry performs well for mobile phones and other applications. Then came the lithium-ion Li-ion followed by the lithium-ion polymer Li-ion polymer . Each of these new systems as introduced claimed better performance freedom from the memory effect and longer runtimes than the dated NiCd. In many cases the statements made by the manufacturers about improvements were true but not all users were convinced. The second edition of Batteries in a Portable World has grown to more than three times the size of the previous version. It describes the battery in a broader scope and includes the latest technologies such as battery quick test. Some new articles have also been woven in and some redundancies cannot be fully avoided. Much of this fresh material has been published in trade magazines both in North America and abroad. In the battery field there is no black and white but many shades