The significant difference between Lithium batteries and Lithium-ion batteries are:

• Lithium batteries are non-rechargeable, whereas Lithium-ion batteries are rechargeable.
• Lithium batteries consist of Lithium in its pure metallic form, whereas Lithium-ion batteries use more compound lithium compounds.
• Lithium batteries must not be recharged, whereas Lithium-ion batteries can be recharged as and when required.