マンガンスピネル正極材

マンガンスピネル正極材によって実現できた安全性と低コスト

正極材料比較

AESC's Manganese Spinel Cathode Material Provides Optimum Performance for Automotive Batteries

While the name "lithium-ion battery" is a general term, there are various types of lithium-ion batteries. Consider the cathode material for example. Numerous different materials are used including lithium cobalt oxide, which is widely used in cell phones and notebook PCs, and lithium manganate, which is used by AESC, as well as lithium nickel oxide, lithium iron phosphate, and ternary systems that combine nickel and manganese with a base of lithium cobalt oxide.
Lithium manganate is the material adopted as the cathode material by AESC, and some benefits of this material include (1) a crystalline structure that does not change even in an overcharged stated, and (2) the fact that manganese reserves are abundant and the market price is stable.
On the other hand, a drawback of manganese based cathode materials is the life span, but AESC successfully overcame this drawback by blending the cathode material with lithium nickel oxide and by improving the electrolytic solution.

 
Manganese Based
Cobalt Based
Power Density
Energy Density
Safety with regards to Overcharging
Life Span
○*
Main Element Material Costs
Environmental Impact of Main Elements
  • Basic performance is ensured by improving the cathode material and electrolytic solution.
  • • 
    Mn-based Li-ion batteries realize advanced safety performance and lower costs.
  • • 
    Energy density and life span that are sufficient for automotive applications are secured through AESC's technology.

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マンガンスピネル構造

マンガンスピネル構造

Manganese Spinel Structure that is Stable Even with Overcharging

When lithium-ion batteries are charged, lithium ions move from the cathode material to the anode material.
Because lithium manganate is a spinel structure with the manganese in a lattice shape, the material remains stable even when charging.

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マンガンスピネル正極材の優位性 -埋蔵量と価格-

マンガンスピネル正極材の優位性 -埋蔵量と価格-
金属材料価格変動推移

Manganese, a material with abundant reserves and a stably low price.

Manganese has become an important material in AESC's lithium-ion batteries, and compared to nickel and cobalt, which are classified as rare metals, abundant reserves of manganese have been confirmed. Therefore, manganese is inexpensive, and the price remains stable.