What is the difference between lithium battery and Ni-CD battery?

The main differences are seven points:
1, the composition of the material is different: lithium batteries with carbon materials (graphite) as the cathode, lithium-containing compounds as the positive electrode, nickel-cadmium battery cathode from the nickel oxide powder and graphite powder and other active substances, the anode is composed of cadmium oxide powder and the active substance of iron oxide powder.
2, the working principle is different: the lithium battery is more equivalent to a charge container, the work is basically not dependent on the electrochemical reaction, when the battery is charged, the battery's positive electrode has lithium ions generated, the lithium ions generated through the electrolyte movement to the cathode. And as the cathode of the carbon layer structure, it has a lot of micro-pores, to the negative lithium ions embedded in the carbon layer of the micro-hole, the more embedded lithium ions, the higher the charge capacity. Likewise, when the battery is discharged (that is, the process of using the battery), the lithium ions embedded in the anode carbon layer are removed and the positive polarity is also moving back. The more lithium ions back to the positive, the higher the discharge capacity. Ni-CD battery work requires an electrochemical reaction, when charging electrons along the wire to the cathode, and the cathode of nickel dioxide and sodium hydroxide solution to form the reaction of nickel hydroxide and hydroxide ions, electric energy into chemical energy; cadmium (Cd) and sodium hydroxide (NaOH) in the anode at discharge (oh-) The synthesis of cadmium hydroxide, and attached to the anode, but also the release of electrons, chemical energy into electrical energy;
3, charge and discharge characteristics of different: lithium battery charging and discharging current has strict control, not too large, and the discharge voltage gradually decreased, the change is larger, but the lithium battery charging efficiency is high, and no memory effect; Ni-CD battery can quickly charge high current, but also can provide high current for the load, and the voltage change is very small during discharge, But its charge efficiency is low, memory effect is serious;
4, Single voltage difference: Lithium battery single-node voltage 3.6v or 3.7v, Ni-CD battery single section 1.2v;
5, the durability characteristics of different: lithium battery is more delicate, over-discharge or overcharge will cause permanent damage, and therefore need to install protection circuit board, and a period of six months or so need to charge and discharge maintenance once; Ni-CD batteries can withstand overcharge or over-discharge, easy to operate, long-time placement will not degrade performance, The original characteristics can be restored when the power is charged;
6, the power volume ratio is different: lithium battery capacity is relatively high, the same weight, volume can be more than the Ni-CD battery storage capacity;
7, environmental characteristics are different: Ni-CD battery cadmium is toxic, so Ni-CD battery is unfavorable to the protection of the ecological environment, many shortcomings make Ni-CD battery has basically been eliminated from the application range of digital Equipment battery. Lithium-ion batteries are largely free of toxic elements and have little impact on the environment, so they are used in digital electronic devices.

What is the difference between lithium battery and Ni-CD battery?