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随着时代的发展,科学家一直在探索新的高比能量、循环寿命长的二次电池.1990年日本Sony公司率先研制成功锂离子电池并实现其商品化.锂离子电池以其比能量高,电池电压高,工作温度范围宽,储存寿命长,质量轻等优点,广泛应用于军事和民用小型电器中,如移动电话,笔记本电脑,摄像机,照相机等.常用的锂电池有Li-MnO_2,锂空气电池,Li-I_2,Li-SOCl_2,Li-SO_2,Li-Al/FeS,Li-ion、Li-Fe-PO_4,LiCoO_2—C_6,LiMn_2O_4—C,C_6Li—LiMO_2等.这些锂电池不仅吸引科技工作者的眼球而且深受命题专家的宠爱.这类试题不仅给考生设置了一种陌生的新情境,而且也给考生营造了一种似乎“高不可攀”的压抑氛围.考生极易因此而产生心理障碍,从而使答题受阻或出错.笔者将这类试
With the development of the times, scientists have been exploring the new high specific energy, long cycle life of the secondary battery .1990 Sony Corporation of Japan took the lead in the successful development and commercialization of lithium-ion batteries. Lithium-ion batteries with its high specific energy, Battery voltage is high, wide operating temperature range, long storage life, light weight, etc., are widely used in military and civilian small appliances such as mobile phones, laptops, camcorders, cameras, etc. Commonly used lithium batteries are Li-MnO_2, lithium Air batteries, Li-I 2, Li-SOCl 2, Li-SO 2, Li-Al / FeS, Li-ion, Li-Fe-PO 4, LiCoO 2 -C 6, LiMn 2 O 4 -C, C 6 Li-LiMO 2, etc. These lithium batteries not only attract technology The eye of the worker and favored by the proposition experts.This type of test not only set a strange new situation for the examinee, but also to create a testament to “Candidate ” depressed atmosphere. Therefore, resulting in mental disorders, so that the answer is blocked or wrong. I will try this type