Ultra-detailed knowledge of lithium batteries
Lithium battery is a kind of rechargeable battery with graphite or other carbon materials as negative electrode and lithium-containing compounds as positive ele...
Lithium battery is a kind of rechargeable battery with graphite or other carbon materials as negative electrode and lithium-containing compounds as positive electrode.battery pilot line It is a kind of battery with lithium metal or lithium alloy as positive material and non-aqueous electrolyte solution.
Classification of lithium batteries
1. Classified by shape: cylindrical lithium-ion batteries, square lithium-ion batteries
Square lithium batteries usually refers to aluminum or steel shell square lithium batteries,laser welding machine for lithium ion batteries widely used in exploration and mapping, medical equipment, portable testing equipment.
2. According to the shell classification: steel lithium batteries, aluminum lithium batteries, lithium batteries with flexible packaging materials
Most of the early lithium-ion batteries are steel shell. Due to the large weight of the steel shell, poor safety, but the steel shell is stable, many manufacturers through the safety valve, PTC device structure optimization design, greatly improving its safety performance. Others have simply replaced steel with aluminum and flexible packaging, such as in today's cell phone batteries.
Aluminum lithium-ion batteries are lighter ESS lithium battery machine and safer than steel lithium-ion batteries.
Flexible packaging lithium-ion batteries are gradually expanding their market share due to their light weight, low mold cost, and high safety.
3. According to the cathode material classification: lithium cobalt acid battery, lithium manganate battery, lithium iron phosphate battery, nickel-cobalt-manganese (ternary) batteries.
4. According to the electrolyte classification: liquid lithium-ion power batteries, polymer as lithium-ion batteries, all-solid-state lithium-ion battery
Liquid lithium-ion batteries use liquid electrolyte, which is an organic solvent lithium salt.
Polymer lithium-ion batteries have been replaced by solid polymer electrolytes, which can be either "dry" or "colloidal". Currently, most polymer colloidal electrolytes are used. The polymer matrix is mainly HFP-PVDF, PAN and PMMA.
"All-solid-state lithium battery" is a lithium battery, with solid-state electrodes and electrolyte materials, in the operating temperature range, does not contain any liquid components, so the full name of the "all-solid-state electrolyte lithium battery".
Application fields of lithium battery
1. Consumer products
Mainly used in digital products, cell phones, mobile power, notebooks and other electronic devices.
Mainly used in medical electronics, photovoltaic energy storage, railroad infrastructure, security communications, exploration and mapping and other fields.
Mainly used in aerospace, ships, satellite navigation, high energy physics and other fields.