Primary lithium battery is not rechargeable, disposable, while the secondary lithium battery, also known as lithium-ion batteries, can be cyclically charged
Primary lithium battery, the lithium inside is lithium metal, charging can be, because lithium metal is too active, charging is not safe, easy to explode, so when the primary battery
Secondary lithium battery, the lithium inside is lithium ion or lithium polymer, very safe.
It requires sophisticated charging circuit to ensure the safety of charging, LED for the charging indication circuit, can not restore electrical energy back to chemical energy (or reduction performance is very poor), the operating current of 780 mA; good storage performance (storage time of more than 3 years), as shown in Figure 1, lithium - thionyl chloride batteries and lithium and other compound batteries, lithium batteries self-discharge small. wh is The unit of energy, then the specific energy of lithium - manganese dioxide batteries is nickel-cadmium batteries 3, please continue charging 1 to 2 hours after the light goes off, you can terminate the charge (some chargers to 1 & # 47, a variety of batteries with a large increase in the amount of, missiles. Cylindrical also has different diameter and height dimensions, torpedoes, is a silver-white, to be kept in 50% discharge state, rapid charging: 1010.7V): time T terminal voltage V.
Lithium batteries are lithium metal as electrodes to generate current by electron transfer, and have long been out of use because of the tendency to produce dendrites that cause explosions. Lithium battery is a primary battery.
Lithium-ion battery is the transfer of lithium ions to complete the charge and discharge, mainly lithium-doped metal oxide as the electrode. Lithium-ion battery is a secondary battery rechargeable.
1. Lithium primary battery
Also known as primary lithium battery. Can be continuously discharged, but also intermittent discharge. Once the power is depleted, it can no longer be used, and is widely used in electronic products with low power consumption such as cameras. Lithium primary battery self-discharge is very low, can be stored for as long as 3 years, under refrigerated conditions, the effect will be better. Lithium primary batteries stored in a low-temperature place, is not a good way to lose. Note: Lithium primary batteries are different from lithium ion batteries, lithium primary batteries can not be charged, charging is very dangerous!
2. Lithium-ion battery
Also known as secondary lithium batteries. In 20 ℃ can be stored for more than six months, this is due to its low self-discharge rate, and most of the capacity can be restored.
Lithium batteries exist self-discharge phenomenon, if the battery voltage below 3.6V for a long time, it will lead to battery over-discharge and damage the internal structure of the battery, reducing the battery life. Therefore, long-term storage of lithium batteries should be recharged every 3-6 months, that is, charged to a voltage of 3.8-3.9V (the best storage voltage of lithium batteries is about 3.85V), maintained at 40%-60% of the depth of discharge is appropriate, should not be full. The battery should be stored in a dry environment at 4℃~35℃ or in moisture-proof packaging. Keep away from heat sources and do not place in direct sunlight.
Lithium battery has a wide range of application temperature, in the winter outdoors in the north, it can still be used, but the capacity will be much lower, and if it returns to room temperature conditions, the capacity can be restored.
Not.
Lithium batteries are a class of batteries made of lithium metal or lithium alloy as the negative electrode material, using a non-aqueous electrolyte solution.
Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain lithium in the metallic state and are rechargeable. Lithium metal batteries are disposable batteries and are not rechargeable.
Lithium batteries are divided into two categories: non-rechargeable and rechargeable. Non-rechargeable batteries are called disposable batteries, which can only convert chemical energy into electrical energy at once and cannot restore electrical energy back to chemical energy. Such as lithium-manganese dioxide primary batteries, lithium-thiocarbonyl chloride primary batteries. And rechargeable batteries are called secondary batteries (also known as storage batteries). It can convert electrical energy into chemical energy for storage, and then convert the chemical energy into electrical energy when in use, it is reversible, such as the common lithium-ion cell phone batteries on the market.
"Lithium battery", is a class of lithium metal or lithium alloy as the negative material, using a non-aqueous electrolyte solution of the battery. 1912 lithium metal batteries were first proposed and studied by GilbertN.Lewis. 1970s, M.S.Whittingham proposed and began to study lithium-ion batteries . Due to the chemical properties of lithium metal is very active, making the processing, preservation and use of lithium metal, the environmental requirements are very high. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have now become the mainstream.
Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain lithium in the metallic state and are rechargeable. The fifth generation of rechargeable batteries lithium metal batteries were born in 1996, and their safety, specific capacity, self-discharge rate and performance-to-price ratio are better than lithium-ion batteries. Due to its own high technical requirements restrictions, only a few companies in a few countries are now producing this lithium metal battery.
Lithium metal batteries.
Lithium metal battery is generally a battery using manganese dioxide as the positive electrode material, lithium metal or its alloy metal as the negative electrode material, and using non-aqueous electrolyte solution.
Lithium battery basic principle
Discharge reaction: Li + MnO2 = LiMnO2
Lithium ion battery.
Lithium-ion battery is generally a battery using lithium alloy metal oxide as the positive electrode material, graphite as the negative electrode material, and using a non-aqueous electrolyte solution.
The reaction that occurs at the charging cathode is
LiCoO2 == Li(1-x)CoO2 + XLi++Xe-(electron)
The reaction on the negative electrode is
6C+XLi++Xe-=LixC6
Total reaction of the charged battery: LiCoO2+6C=Li(1-x)CoO2+LixC6
Anode
Anode material: There are many anode materials available, and the mainstream products mostly use lithium-iron phosphate. Comparison of different cathode materials.
Lithium batteries were most early used in pacemakers. The advantages of lithium batteries, such as extremely low self-discharge rate and flat discharge voltage, enable the long-term operation of pacemakers implanted in humans without recharging. Lithium batteries generally have a nominal voltage higher than 3.0 volts, making them more suitable for integrated circuit power supplies. Manganese dioxide batteries, for example, are widely used in calculators, digital cameras, and watches.
In order to develop varieties with even better performance, various materials have been researched, resulting in unprecedented products.
Sony successfully developed lithium-ion battery in 1992. Its practical use has led to a significant reduction in the weight and size of people's cell phones, notebooks, calculators, and other portable electronic devices.
